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Aging and Long-Term Care (10 Hours) > Chapter 1, Part B
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Chapter 1, Part B
Chronic Diseases and Causes of Death
A chronic disease is one that lasts for a long time. The U.S. National Center for Health Statistics has defined a chronic disease as one that last three months or more. Vaccines usually cannot prevent these diseases, nor can medications cure them; they also don't just disappear. As of 1998, 88% of Americans age 65+ have at least one chronic health condition. Major contributors to these diseases can be lumped under health damaging behaviors---specifically tobacco use, lack of physical activity, and poor eating habits (MedicineNet.com 2004).
Chronic diseases are inclined to become more prevalent with age. The leading chronic diseases in the United States (in alphabetical order) are:
· Arthritis · Cardiovascular diseases, including heart attacks and strokes · Cancer · Diabetes · Obesity
Chronic disease, other illness, or injuries may limit physical and mental abilities. There are important limitations for work and retirement policies, health and long-term care needs, and the social well-being of the elderly that are impacted by changes in functional limitations. The chart below shows what percentages of Medicare enrollees have these impactive limitations.
Source: Federal Interagency Forum 2008, 32
Six of seven leading causes of death among older Americans are chronic diseases---long-term illnesses that are seldom cured. These conditions adversely affect quality of life and contribute in a major way to worsening functionality and the inability to maintain independence (Federal Interagency Forum 2008, 27).
Age-Related Diseases
Although no disease is limited to the elderly, there are some that are predominantly age-related. Basic, clinical, and epidemiologic research is performed daily to develop creative, safe, and productive ways to prevent and treat age-related diseases, disorders, and disabilities (NIH 2009b). The goals of these studies are to:
· Improve vaccine and drug development · Lessen the disabling effects of disease · Delay onset or progression of disease · Enhance pain management
Diseases that these studies target are primarily in the following categories:
o Alzheimer's disease o Cardiovascular diseases o Cancer o Osteoporosis, osteoarthritis, and other bone, muscle, and joint disorders o Sensory disorder, including vision and hearing o Diabetes o Incontinence
The leading cause of death in 2004 among people age 65 and over was heart disease, followed by cancer, stroke, chronic lower respiratory diseases, Alzheimer's disease, diabetes mellitus, and influenza and pneumonia. Death rates for heart disease and stroke declined by approximately 44% since 1981; however, deaths from diabetes increased by 38% and death from lower respiratory diseases also increased by 53% (Federal Interagency Forum 2008, 26).
Please note that the information on age-related diseases in this course is to aid you in understanding your clients' needs. Treatment options are for your information only; clients with any of these problems should be under a physician's care. You also need to be aware that diminished physical and/or mental ability may make it hard for a client to follow a treatment plan; limited financial resources may affect the choice and use of medication (NDIC 2002).
Cardiovascular Diseases (CVD)
An estimated one in three American adults has one or more types of cardiovascular diseases (CVD). These diseases are the No. 1 killer in our nation. The diseases that are collectively known as CVD are high blood pressure, coronary heart disease (which includes heart attacks and angina), heart failure, stroke, and congenital cardiovascular defects.
The American Heart Association (2009) shows the prevalence of CVD in adults by age and sex (these data include coronary heart disease, heart failure, stroke and hypertension)---
--- and the percentage breakdown of deaths from cardiovascular diseases from the most recent statistics available (AHA 2009a):
*Not a true underlying cause
High Blood Pressure
The official definition of high blood pressure (HBP) is systolic pressure of 140 mm Hg or greater and/or diastolic pressure of 90 mm Hg or higher, taking antihypertensive medicine, or being told at least twice by a physician or other health professional that you have high blood pressure. If you have a hard time remembering which number is systolic and which is diastolic, think of the initials of South Dakota---S (or systolic) comes before D (or diastolic).
Up to age 45, more men than women have HBP. For the next nine years, until age 54, the percentage of men and women is similar. After that, a much higher percentage of women than men have the problem (AHA 2009a).
The major problems of HBP are that the relative risk for stroke is about four times greater than for those with normal blood pressure, the likelihood of developing heart failure is two to three times higher, and there is a shorter life expectancy.
Coronary Heart Disease
Coronary heart disease (CHD), also known as coronary artery disease (CAD), is a narrowing of the small blood vessels that supply blood and oxygen to the heart. This narrowing disallows an adequate amount of blood to get to the heart, and may cause a variety of symptoms (Weinrauch 2008a):
· Chest pain (angina) · Shortness of breath · Heart attack---transient ischemic attack (TIA)---sometimes the first sign of CHD · Fatigue with activity (exertion)
A number of risk factors for CHD have been identified (NHLBI n.d.a) including:
o Unhealthy blood cholesterol levels---high LDL cholesterol ("bad cholesterol") and low HDL cholesterol ("good cholesterol") o High blood pressure o Smoking. This can damage and constrict blood vessels, raise LDL cholesterol and blood pressure; it prevents sufficient oxygen from reaching the body tissues o Insulin resistance, a condition that develops when the body can't use its own insulin correctly o Diabetes, a disease in which the body's blood sugar level is high because the body doesn't make enough insulin or there is insulin resistance o Overweight or obesity o Metabolic syndrome, a group of risk factors linked to overweight and obesity o Lack of physical activity o Age o Family history of heart disease. Risk increases if a father or a brother was diagnosed with CAD before age 55, or if a mother or a sister was diagnosed with CAD before age 65
However, another group found nine easily measured risk factors, many found on the above list. The big news is that most are something one can potentially control and thus reduce risk for CHD (Yusuf 2004). Most people can probably name them:
· · Lack of physical activity · Low daily fruit and vegetable consumption · Alcohol overconsumption · Abdominal obesity · Stress · Diabetes · High blood pressure · Abnormal blood lipid levels (which cause high cholesterol levels).
The prevention? Common sense should enable one to figure out what is on the list if they don't already know, a list that is perhaps easier said than done, but still doable:
ü Watch the diet (reduce refined carbohydrates, increase fiber, eat the recommended 5-6 daily servings of fruits and vegetables) ü Exercise ü Get enough sleep
Angina pectoris
There are two kinds of angina pectoris: stable and unstable.
Stable angina, also called chronic angina, is pain or discomfort that is usually caused by activity or stress. The pain typically starts slowly and worsens over a few minutes before going away. Medications or rest bring it to an end, but with further activity or stress it may return (Weinrauch 2007a).
Unstable angina is a sudden or severe chest pain that happens when not enough oxygen reaches the heart. It can be a warning sign of impending heart attack (Weinrauch 2007b).
The pain is most commonly in the chest, but it can appear almost anywhere in the chest or abdomen, the back or arms. This makes it very difficult to recognize, but if it happens repeatedly or if it is quite severe or lasts for 30 minutes or more, it is time to summon immediate medical aid.
Note: Rate for women age 45-54 considered unreliable
Angina pectoris results in nine to ten deaths every week in the U.S. (Lloyd-Jones 2009, e60).
Transient Ischemic Attacks (TIAs)
When enough of the flow of blood to a section of the heart becomes blocked, a heart attack---transient ischemic attack (TIS)---takes place. The longer it takes to restore the blood flow, the more likely the heart muscle becomes damaged from insufficient oxygen and begins to die. This heart damage may not be noticeable, or it may cause serious or long-lasting problems.
Although CAD is by far the most common cause of heart attacks, they can also be caused by a severe spasm, or tightening, of a coronary artery, cutting off the blood supply to the heart just as CAD does. These spasms can happen in coronary arteries that have no CAD. Potential causes of this tightening include: taking certain drugs such as cocaine; emotional stress or pain; exposure to extreme cold; and cigarette smoking (NHLBI n.d.b).
In addition to angina, symptoms of having a heart attack may include (NHLBI 2008):
If it appears an individual may be having a heart attack:
Every year, approximately 1.5 million people in the United States have heart attacks, and more than half of them die. CAD, which often results in a heart attack, is the leading killer of both men and women in the United States (AHA 2009a).
Heart attacks occur with no previous symptoms in 50% of men and 64% of women who die suddenly from the attacks. (Lloyd-Jones 2009, e60). Many more people could recover from heart attacks if they got help faster. Of the people who die from heart attacks, about half die within an hour of the first symptoms and before they reach the hospital (NHLBI 2008).
Stroke
Because a stroke is a vascular (cerebrovascular) disease it is often included as a CVD.
On average, every 3-4 minutes someone dies of a stroke. Stroke accounted for about one of every seventeen deaths in the United States in 2005. When considered separately from other cardiovascular diseases, stroke ranks No. 3 among all causes of death, behind diseases of the heart and cancer (AHA 2009b, 14).
Stroke risk factors include (AHA 2009b, 15):
· High blood pressure, the most important risk · Smoking, increases the risk to about twice that of non-smokers · Atrial fibrillation, increases the risk about five times · Among postmenopausal women in one study, taking estrogen plus progestin (PremPro) increased ischemic stroke risk by 44%, with no effect on hemorrhagic stroke. · In the Framingham Heart Study, among participants younger than age 65, the risk of stroke was 4.21 times higher in subjects with symptoms of depression.
The best stroke prevention is physical activity.
Congestive Heart Failure
More than five million Americans have been diagnosed with congestive heart failure (CHF)---also known as heart failure (AHA 2009b).
This is a progressive condition when a heart has been damaged, leading to a weakened cardiovascular system. The heart is unable to pump enough blood to the body's other organs. Sometimes this is because the heart cannot be filled with enough blood (diastolic failure); other times it is because the heart can't pump with enough force to send the blood to other parts of the body (systolic failure) (NHLBI 2007).
Once the heart has been injured, the body tries to make up for lessened blood flow. Unfortunately, many of the compensations actually escalate strain on the heart and aid heart failure to further develop (HFO 2006).
Right- vs. Left-Sided Heart Failure (HFO 2006; Weinrauch 2008b,c)
§ Right Heart Failure---This occurs when the right side of the heart is unable to sufficiently pump venous blood into the pulmonary circulation. The lungs may not receive enough blood. All of this results in a back-up of fluid in the body, producing edema and congestion that may affect the liver, the gastrointestinal tract, and the limbs. § Left Heart Failure---The left side of the heart gets blood directly from the lungs, where it has been oxygenated. If it is unable to adequately pump that blood into the rest of the body, then the rest of the body does not have enough oxygen, resulting in fatigue, shortness of breath, and pulmonary edema.
Causes of congestive heart failure include (HFO 2006):
· Coronary artery disease (CAD) · Hypertension (high blood pressure) · Valvular heart disease · Cardiomyopathy (one of several diseases of the heart muscle) · Family history of heart failure · Diabetes · Marked obesity · Heavy consumption of alcohol, or drug abuse · Failure to take medications · Large salt intake in diet · Sustained rapid heart rhythms
Symptoms of heart failure can be:
o Swollen ankles or legs o Shortness of breath o Angina o Fatigue o Weight gain or loss o Loss of appetite
Although no heart failure patient should ever begin or alter a course of physical training without the explicit instructions and observation of a health care professional, moderate to light aerobic activity and mild weight training seem to aid in preventing progression of heart failure (Mayo Clinic Health Letter 2008).
Arrhythmias
Arrhythmias can occur in a healthy heart and be of minimal consequence. They also may indicate a serious problem and lead to heart disease, stroke or sudden cardiac death (AHA 2009c).
The rhythmic beating of the heart is controlled by electrical signals. The sinoatrial (SA) node of the heart (also called the "sinus node") sends an electrical impulse through the heart, initiating impulses for the heart beat. The heart contracts ("beats") when it receives this impulse.
This begins the normal electrical sequence through the heart. It begins in the right atrium, and spreads throughout the atria to the atrioventricular (AV) node. From there the electrical impulses travel down the His-Purkinje system---a group of fibers designed to take the electrical signals to all parts of the ventricles.
The heart pumps correctly when this exact route is followed. This means that the heart pumps and beats at a regular pace, about 60 to 100 times a minute for an adult. To see a graphic explanation of how the heart pumps, go to http://www.youtube.com/watch?v=P66lNH0f1HY.
If arrhythmias are so fleeting, such as a premature beat or a temporary pause, that the heart's rhythm is barely affected, there is no problem. However, if it lasts for a longer time, the heart may pump less efficiently because the heart rate has slowed down too much, sped up too much, or the rhythm has become erratic; then the problem could be severe. For a lengthy, but excellent discussion, see Heart Rhythm Abnormalities, Part 1 (http://www.youtube.com/watch?v=E5OQL6KY_2g) and Part 2 (http://www.youtube.com/watch?v=FBvAOiSJlUo).
A fast heart rate (more than 100 beats per minute in adults) is called tachycardia; a slow heart rate (less than 60 beats per minute) is called bradycardia. Other common arrhythmias are fibrillation (quivering beat), and premature contraction (early beat) (AHA 2009c).
Arrhythmias can produce a broad range of symptoms. Some may be barely noticeable; others may be at the opposite extreme: cardiovascular collapse and death. For example, not likely to be serious:
· A single premature beat that may be felt as a "palpitation" or "skipped beat." · If premature beats take place frequently or in rapid succession, a person may become more aware of heart palpitations or a "fluttering" feeling in the chest or neck.
If these arrhythmias last long enough to alter how well the heart works, the following---more serious---symptoms may develop: · Fatigue · Dizziness · Lightheadedness · Fainting or near-fainting spells · Rapid heartbeat or pounding · Shortness of breath · Chest pain · In extreme cases, collapse and sudden cardiac arrest Most arrhythmias are not treated because they are thought to be harmless. Once the doctor has determined whether the arrhythmia is clinically significant or not, he/she will set a treatment plan with the following goals (AHA 2009c):
o Prevent blood clots from forming to reduce stroke risk o Control the heart rate within a relatively normal range o Restore a normal heart rhythm, if possible o Treat heart disease/condition that may be causing arrhythmia o Reduce other risk factors for heart disease and stroke
Valvular Heart Disease
Heart valve disease is when the heart's valves don't work the way they are supposed to---they may be constricted so that they don't open wide enough for an adequate amount of blood to go through during each heart beat (stenosis); conversely, they may flap too much and not close tightly so blood is allowed to "leak" backwards between contractions (insufficiency or regurgitation).
The heart valves are one-way valves. They are placed at the exit of each of the four heart chambers to prevent this backward leakage.
Valvular stenosis makes the heart work hard to pump blood through it. This can lead to heart failure, and other problems. The heart also has to work harder in valvular insufficiency to make up for the leaky valve; also less blood may be pumped to the rest of the body.
There are a number of potential causes of valvular heart disease (MedicineNet.com n.d.):
· Congenital valve disease where, before birth, the valve was the wrong size, had misshapen or misattached leaflets. · Rheumatic fever---a bacterial infection, usually strep throat. Not as common now with newer antibiotics, children have the disease but may not be aware of the heart problem for 20-40 years, when the heart valves become inflamed, the leaflets stick together and become misshapened: scarred, rigid, thickened, and/or shortened. · Endocarditis---bacteria or other germs get in the bloodstream and attack the heart valves, causing growths and holes in the valves and/or scarring. · Coronary artery disease · Heart attack · Cardiomyopathy (heart muscle disease) · Syphilis · High blood pressure · Aortic aneurysms · Connective tissue diseases
The primary symptoms of valvular heart disease are (MedicineNet.com n.d.):
· Shortness of breath and/or difficulty catching one's breath · Weakness or dizziness · Chest discomfort · Heart palpitations · Edema, swelling of ankles, feet, or abdomen · Rapid weight gain, from edema
The doctor will usually try to treat valvular disease with medication as long as possible: diuretics for water retention, antiarrhythmic medications for heart rhythm problems, vasodilators to lessen the heart's work, ACE inhibitors to treat high blood pressure and heart failure, beta blockers to slow the heart's rhythm and allow more time for the blood to flow through the valves, and anticoagulants to thin the blood and prevent blood clots from developing on the valve.
Other Diseases of the Body
Rheumatic Diseases
Rheumatic diseases are "disorders of connective tissue, especially the joints and related structures, characterized by inflammation, degeneration, or metabolic derangement" (MDO n.d.). There are over 100 rheumatic diseases, many of which have historically been lumped under the term rheumatism. The discussion here is limited to those that most commonly occur to people age sixty or older, although they may also occur at other ages.
Osteoarthritis
Osteoarthritis is the most common type of arthritis---70% of those over seventy years old have x-ray evidence of this malady (Srikulmontree 2008). Osteoarthritis chiefly affects the tissue, known as cartilage, which pads the ends of bones within a joint. Osteoarthritis takes place when cartilage begins to wear or fray, sometimes completely wearing away, leaving a bone-on-bone joint (NIAMS n.d.a).
Some predispositions to osteoarthritis are:
· Age · Being overweight or obese · Injury and/or stress to the joint(s) · Family history of osteoarthritis
Symptoms of osteoarthritis can include the following joint problems (WD 2009):
· Joint pain or tenderness · Joint stiffness, reduced motion · Slow, often painful, movement · Crunching sound · Swollen joints · Joints that lock · A crunching or grinding sound
Other symptoms can include (WD 2009):
· Fever · Weight loss · Fatigue · Trouble breathing · Rash and/or itch
Osteoarthritis may also cause disability which usually happens when the spine, knees, or hips are affected.
Treatments for osteoarthritis are fourfold:
v Physical resources: à Exercise à Support devices à Thermal therapy à Alternative therapies, e.g., chiropractic, acupuncture, or massage
v Drug therapy: à Topical agents, e.g., capsaicin cream à Oral pain relievers, e.g., acetaminophen à Nonsteroidal anti-inflammatory drugs (NSAIDs) for swelling and inflammation à Narcotics for severe pain à Joint injections with corticosteroids or a form of lubricant called hyaluronic acid (HA) derivatives
v Surgery: à Arthroscopy à Joint replacement
v Nutritional supplements: à Chondroitin/glucosamine sulfate supplementation is recommended by the National Institutes of Health (NIH 2009), with the caution to consult a pharmacist or physician to avoid drug interactions.
Osteoporosis
Osteoporosis is a disease manifested by a decrease in bone strength; this leads to a greater risk of fractures, or broken bones (NIAMS n.d.b, 1). Osteoporosis is the primary underlying cause of fractures in postmenopausal women and the elderly. Bones of the hip, spine, and wrist more frequently sustain fractures, but any bone can be affected. Some fractures can be permanently crippling, especially if they are in the hip.
The first plan of attack is to aid your clients in preventing osteoporosis. The following are some of the ways an individual can help prevent and/or treat osteoporosis (NIAMS n.d.b, 17ff, 32ff):
· Adequate calcium consumption (the earlier in life this can be started, the better the result). Calcium needs vary from time to time in one's life; supplements may be beneficial. For adult men and women, the following amounts (in milligrams) are recommended: 19–50 years 1,000 51–70 years 1,200 Over 70 years 1,200 · Adequate Vitamin D consumption (like calcium, the earlier in life this begins, the better the result); supplements may be helpful. For adult men and women, the following amounts (in International Units) are recommended: 19–50 years 200 51–70 years 400 Over 70 years 600 · Overall nutrition---a balanced, nutritious diet with a large quantity and variety of fruits and vegetables, plus enough calories · Exercising and keeping other facets of a balanced life, including sleep
Pseudogout
Calcium Phosphate Crystals
One of the risk factors of pseudogout is older age (Mayo 2008), whereas that is not as true of gout (Mayo 2007). Other risk factors of pseudogout are:
· Joint trauma · Genetic disorder · Excess iron stored in the body (hemochromatosis)
Polymyalgia Rheumatica
An inflammatory disorder, polymyalgia rheumatica (PMR) causes widespread muscle pain and stiffness, especially in one's neck, shoulders, upper arms, thighs, and hips. Symptoms may appear gradually or very suddenly. The exact cause of PMR is not known, but it is possibly a problem with the immune system; it may involve both genetic and environmental aspects. There may also be a link with particular viruses (Mayo 2008a):
o Adenovirus, which causes respiratory infections ranging from the common cold to pneumonia o Human parvovirus B19, the source of an infection that primarily affects children o Human parainfluenza virus
PMR is diagnosed through blood tests: sed rate, rheumatoid factor (RF), C-reactive protein, and other blood tests. Polymyalgia rheumatica will usually resolve itself in one to two years, but symptoms may be improved with medications and self-care strategies.
Symptoms may include:
· Aching and stiffness in the neck, shoulders, upper arms, thighs, and hips · Fatigue · Unintentional weight loss · General feeling of malaise or weakness · A slight fever at times · Anemia---low red blood cell count
Risk factors that may increase the likelihood of an individual getting PMR are (Mayo 2008a):
o Age---that average age of onset is seventy o Sex---women are twice as likely to develop PMR as are men o Race---anyone can get PMR, but most are white, and people of Northern European and Scandinavian origin are especially at risk o Giant cell arteritis---approximately half of those having giant cell arteritis also have polymyalgia rheumatica
Doctors may treat the disease with nonsteroidal anti-inflammatory drugs (NSAIDs) or oral corticosteroid drugs such as prednisone, but they prefer not to use either of these medications over a long period of time because of potential side effects. Other things clients can do to help are:
· Exercise (surprise, surprise!) · Eat a healthy diet (another surprise!) · Pace themselves. Try to interchange demanding or repetitious tasks with easier ones to avoid straining painful muscles.
About seven out of one thousand of those over 50 have PMR (WD n.d.), and anywhere from 15-25% of those also have Giant Cell Arteritis (GCA) (Werner 2008), another rheumatic disease. Because of its relatively small percent of incidence, GCA will not be discussed in this course, but healthcare workers are urged to learn more about it "just in case."
Paget's Disease of Bone
Bones, as other parts of the body, continually rebuild themselves. When this happens at an accelerated rate, the bones can become misshapen and soft, a condition called Paget's disease of bone. If a bone has become soft through this condition, it can cause the involved pelvis, spine, hips, thighs, head, or arms to bend and be weak. If the bone is misshapen or enlarged, it is prone to arthritis and fractures and may cause hearing loss and discomfort (Altman 2006).
This is a condition that is seldom diagnosed before age forty, and the frequency of diagnosis increases in each progressive age group to 10% by age 80 (WD n.d.a). For this reason, the symptoms are often assumed to be simply part of the aging process. Fortunately, the condition does not spread from bone to bone and is usually limited to one or a few bones of the pelvis, spine, hips, thighs, head, or arms (Altman 2006). Very rarely, in less than 1% of those with Paget's, it can lead to cancer---osteosarcoma---although this usually happens only after the individual has had Paget's for a long time. Osteoarthritis and congestive heart failure are more common complications of Paget's disease (Mayo 2008b).
The only known risk factors are age and heredity, although men are more likely to get Paget's than are women. It is diagnosed through an alkaline phosphatase blood test, an x-ray---usually taken for unrelated reasons, and/or a bone scan.
Symptoms, if any, will depend on the part of the skeletal system that is involved, and can include (Mayo 2008b):
· Pain in the affected bone(s)---the most common symptom. It may be a constant, deep ache, and it may be worse at night. · Pain, swelling, and/or stiffness in the joints · Pain from nerve compression---usually more intense pain than that in the bone · Numbness, tingling, weakness, hearing loss, and double vision may occur from nerve compression. · Warmth in the skin over the affected area · Neurological problems such as headache, hearing loss, and occasionally vision loss · Bone deformities (bowed legs, enlarged head) · Fractures · Loss of bladder or bowel control accompanied by weakness in the legs---this can indicate severe spinal damage
One of two kinds of bone-regulating medications, bisphosphonates and calcitonin, may be prescribed. Nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin may be prescribed for inflammation, and acetaminophen (e.g., Tylenol) may be used to reduce pain. In a very few cases, the patient may need surgery to aid in the healing of fractures, to replace damaged joints, to realign deformed bones, or to reduce pressure on nerves (Mayo 2008c).
In addition to the anticipated healthy diet and exercise, Paget's patients need to take extra care to avoid falls.
Diabetes Mellitus
Almost twenty-four million Americans are estimated to have diabetes mellitus (ADA n.d.), and more than half of those are over sixty years of age. Of folks over age sixty-five, almost 20% have diabetes (NDIC 2002).
· Cardiovascular disease---if someone has diabetes they are twice as likely to get heart disease such as angina, heart attack, stroke and narrowing of arteries (atherosclerosis) · Neuropathy (nerve damage)---tingling, numbness, burning, or pain in fingers or toes that spreads upwards, sometimes ending in loss of all feeling in the affected limbs; neuropathy in the digestive system can cause nausea, vomiting, diarrhea, or constipation, lead to erectile dysfunction for men · Nephropathy (kidney damage)---severe damage can have the end results of kidney failure or irreversible end-stage kidney disease, which requires dialysis or even a kidney transplant · Eye damage (diabetic retinopathy)--this can lead to blindness · Skin and mouth conditions such as bacterial infections, fungal infections and itching · Bone and joint problems such as osteoporosis
There are two types of diabetes (Mayo 2009; Inzucchi et al 2007a; Inzucchi et al 2007b):
v Type 1 diabetes is an immune system problem. Instead of fighting harmful viruses or bacteria, which is the job of the immune system, it attacks and destroys insulin-producing cells in the pancreas, leaving the individual with little or no insulin. This causes the blood sugar to build up in the bloodstream rather than being transported into the cells. Type 1 diabetes most commonly develops during childhood or adolescence, but can develop at any age. v Prediabetes is the forerunner of type 2 diabetes in which the cells resist the action of insulin; the pancreas cannot make enough insulin to surmount this resistance. This causes the blood sugar to build up in the bloodstream rather than being transported into the cells, just as in type 1 diabetes. Although the cause of this is unknown, factors seem to include excess fat---particularly abdominal fat---and inactivity. Type 2 diabetes is the most common type. It can develop at any age, and is often preventable.
As a person ages, insulin production tends to decrease because of age-related cell damage (including in the pancreas) causing a reduction of insulin output. Other tissues tend to become less sensitive to insulin.
The risk factors for diabetes include (Mayo 2009): · Weight. The more fatty tissue there is, the more resistant the cells become to insulin. · Inactivity. Physical activity helps control weight, uses up glucose as energy and makes cells more sensitive to insulin. · Family history. Risk increases if a parent or sibling has type 2 diabetes. · Race. Although it's unclear why, people of certain races---including blacks, Hispanics, American Indians and Asian-Americans---are at higher risk. · Age. The risk increases as one gets older, especially after age 45. · Gestational diabetes. If someone developed gestational diabetes when they were pregnant, the risk of developing prediabetes and type 2 diabetes later increases. If birth was given to a baby weighing more than 9 pounds, they're also at risk of type 2 diabetes. It is most important that your clients be aware of potential symptoms of diabetes (Mayo 2009):
· Increased thirst · Frequent urination · Extreme hunger · Unexplained weight loss · Fatigue · Blurred vision · Slow-healing sores · Frequent infections
The physician may use one or more of the following tests to diagnoses diabetes (Mayo 2009):
· Fasting blood sugar test---A blood sample is taken after an overnight fast. A blood sugar level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is considered prediabetes. If it's 126 mg/dL (7 mmol/L) or higher on two separate tests, the diagnosis will be diabetes. · Oral glucose tolerance test, usually used when prediabetes is suspected. A blood sample is taken after a fast of at least eight hours. Then the patient drinks a sugary solution, and the blood sugar level is measured again after two hours. A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A blood sugar level from 140 to 199 mg/dL (7.8 to 11 mmol/L) is considered prediabetes. A blood sugar level of 200 mg/dL (11.1 mmol/L) or higher may indicate diabetes. · Random blood sugar test---A blood sample is taken at a random time. Regardless of when the individual last ate, a blood sugar level of 200 milligrams per deciliter (mg/dL)---11.1 millimoles per liter (mmol/L)---or higher suggests diabetes.
As with most classes of diseases, there is some commonality between treatments but specific types of the disease may have special prescriptions and/or regimens. And, as with most of the diseases discussed in this program, for any type of diabetes a healthy diet and exercise should be considered part of the treatment plan. Additionally, someone with diabetes basically needs to monitor their blood sugar and to take insulin as prescribed.
Incontinence
In the elderly population, incontinence is a potentially disabling condition that is both common and disruptive. It is defined as the involuntary loss of urine or stool in an amount large enough to be a social and/or health problem (Kane et al 2004, 173). Urinary incontinence (UI), much more common than stool incontinence, affects 8-34% of the non-institutionalized elderly population (Merck n.d.) and 50-84% of the geriatric population in long-term care facilities (Ogundele et al 2006).
Urinary incontinence is a medical condition with numerous possible causes, but it is not a normal part of aging or, in women, an inevitable consequence of childbirth or change after menopause. It can result in lifestyle changes---changes in activities, work life, social and personal life---and in skin problems and urinary tract infections (Mayo 2007a).
There are several kinds of urinary incontinence (Mayo 2007a):
v Those that are temporary and can be resolved by a change in habits: § Alcohol § Over-hydration § Dehydration § Caffeine § Bladder irritation that can be caused by carbonated drinks, tea, coffee (caffeinated or decaffeinated), citrus fruits and juices, and artificial sweeteners § Some medications § Other illness or injury
v Those that are caused by easily treatable medical conditions; § Urinary tract infections § Constipation
v Those that are caused by factors that lead to chronic incontinence: § Pregnancy and childbirth § Changes with aging (e.g., aging bladder muscle, blood vessel disease, high blood pressure, overweight) § Hysterectomy § Interstitial cystitis (rare cause) § Prostatitis (not typically a cause) § Enlarged prostate § Prostate cancer § Bladder stones or bladder cancer § Neurological disorders (multiple sclerosis, Parkinson's disease, stroke, a brain tumor or a spinal injury can interfere with nerve signals involved in bladder control) § Obstruction (urinary stones or a tumor)
There are several risk factors, some that are changeable, and some that are not (Mayo 2007a):
· Sex---women are more likely to have incontinence, except for men that have prostate gland problems · Age · Obesity · Smoking · Vascular disease · Kidney disease · Diabetes
There are six types of incontinence with their own symptoms (Mayo 2007a):
1. 2. Urge incontinence. This is a sudden, intense urge to urinate, followed by an involuntary loss of urine. The bladder muscle contracts and may give a warning of only a few seconds to a minute to reach a toilet. With urge incontinence, one may also need to urinate often. The need to urinate may even wake a person up several times a night. Some people with urge incontinence have a strong desire to urinate when they hear water running or after they drink only a small amount of liquid. Simply going from sitting to standing may even cause urine leakage. 3. Overflow incontinence. If there is a frequent or continual dribble of urine, overflow incontinence is likely the cause. This is lack of ability to empty the bladder, leading to overflow. 4. Functional incontinence. Many older people, particularly those in nursing homes, have incontinence because a physical or mental impairment keeps them from getting to the toilet in time. For example, someone with severe arthritis may be unable to unbutton his or her pants quickly enough; a person with Alzheimer's disease may not be able to plan well enough to get to the toilet on time. This type of incontinence is called functional incontinence. 5. Gross total incontinence. This term describes constant urine leakage, day and night, or intermittent large amounts of urine and uncontrollable leaking. This person's bladder has little or no storage capacity. The person may have been born with an anatomical defect, had a spinal cord injury, or an injury to the urinary system from surgery. A fistula---abnormal opening---between the bladder and a structure next to it, such as the vagina, may also cause this type of urinary incontinence. 6. Mixed incontinence. If a person experiences symptoms of more than one kind of urinary incontinence, e.g., stress incontinence and urge incontinence, he/she has mixed incontinence. Usually one kind is more of a bother than the other kind is.
Procedures that have a good chance of preventing urinary incontinence are:
· Maintaining a healthy weight · Not smoking · Avoiding bladder irritants · Eating more fiber · Being active
There are a number of treatments for UI, depending on the kind of incontinence the individual has, the severity of the problem, and the fundamental cause of the problem (Mayo 2007a).
v Behavioral techniques § Pelvic floor muscle exercises (Kegel exercises) § Bladder training § Scheduled toilet trips § Fluid and diet management
v Medications § Anticholinergic (antispasmodic) drugs § Imipramine (Tofranil) § Antibiotics § Other medications
v Electrical stimulation. Electrodes are temporarily inserted into the rectum or vagina to stimulate and strengthen pelvic floor muscles. This can be effective for stress incontinence and urge incontinence, but it takes several months and multiple treatments to work. It can also cause side effects, e.g. abdominal cramps, diarrhea and bleeding. This method is usually used only for people with severe urge incontinence who have been unable to respond to behavioral techniques or medications.
v Medical devices § Urethral inserts § Pessaries
v Surgery
v Absorbent pads and catheters
Many people do not tell their doctors about the urinary incontinence. They may be "used to it" and assume it is a necessary part of aging, or they may be embarrassed. You will need to be on the lookout for signs---verbal or otherwise---of UI, or you may need to ask in order to help your client find the best resolution to this problem. |
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Aging and Long-Term Care (10 Hours) > Chapter 1, Part B
Page Last Modified On: April 23, 2009, 01:59 PM
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