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Chronic Renal Failure (CRF) Learning Center

Anemia; Bleeding from the stomach or intestines; Bone, joint, and muscle pain; Changes in blood sugar; Damage to nerves of the legs and arms (peripheral neuropathy) Dementia; Fluid buildup around the lungs (pleural effusion) Heart and blood vessel...
Source:ADAM
Date:August 12, 2009
Early diagnosis and treatment of kidney failure is critical to improving length and quality of life in chronic kidney failure patients. Patient outcome varies by the cause of chronic kidney failure and the method chosen to treat it. Overall, patie...
Source:Gale Encyclopedia of Medicine
Early diagnosis and treatment of kidney failure is critical to improving length and quality of life in chronic kidney failure patients. Patient outcome varies; it depends on the cause of chronic kidney failure and the method chosen to treat it. Ov...
Source:Gale Encyclopedia of Nursing and Allied Health
Hypertension is the term used to describe high blood pressure. Blood pressure readings are measured in millimeters of mercury (mmHg) and usually given as two numbers. For example, 120 over 80 (written as 120/80 mmHg. The top number is your systoli...
Source:ADAM
Date:April 23, 2009
In populations, blood pressures fit a normal distribution, but the attendant risks of heart disease and stroke increase curvilinearly with increasing levels of blood pressure, without any obvious breakpoint ( Fig. 63-1 ). Thus, the separation of normal from high blood pressure is arbitrary, and the definition of hypertension has been a moving target.
Source:Elsevier
Blood pressure is the force with which blood pushes against the artery walls as it travels through the body. Like air in a balloon, blood fills arteries to a certain capacity—and just as too much air pressure can cause damage to a balloon, too muc...
Source:Gale Nutrition and Well-Being A to Z
The following Clinical Topic Tour provides an overview of hypertension (HTN) and was adapted from materials published by the NHLBI.
Source:Elsevier
Also known as high blood pressure, a condition in which too much force is exerted by the blood as it travels through the body's arteries. There are two types of hypertension: primary and secondary. Primary, or essential, hypertension is caused by ...
Source:Gale Encyclopedia of Childhood and Adolescence
Hypertension is an independent risk factor for coronary artery disease (CAD) and stroke, leading causes of morbidity and mortality in North America. Concern has been raised that there is inadequate outpatient detection, evaluation, and treatment of hypertension, and that this is resulting in increased hospital admissions with complications of untreated hypertension: heart failure, and end-stage renal disease .
Source:Elsevier
Hypertension is the medical term for high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries as it flows through them. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's ...
Source:Gale Encyclopedia of Alternative Medicine
The National High Blood Pressure Education Program (NHBPEP) was established in 1972 by the National Institute of Health to translate research results on the health hazards of high blood pressure into clinical and public health practice. Before 190...
Source:Gale Encyclopedia of Public Health
Hypertension is high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's tissues.
Source:Gale Encyclopedia of Children's Health
Hypertension is high blood pressure. Blood pressure is the force of blood pushing against the walls of arteries as it flows through them. Arteries are the blood vessels that carry oxygenated blood from the heart to the body's tissues.
Source:Gale Encyclopedia of Medicine
Hypertension is high blood pressure . Blood pressure is the force of blood pushing against the walls of arteries as it flows through them.
Source:Gale Encyclopedia of Nursing and Allied Health
Heart failure, also called congestive heart failure, is a condition in which the heart can no longer pump enough blood to the rest of the body.
Source:ADAM
Date:May 1, 2009
End-stage kidney disease is the complete, or almost complete failure of the kidneys to function. The kidneys can no longer remove wastes, concentrate urine, and regulate many other important body functions.
Source:ADAM
Date:August 12, 2009
Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their red color. Peopl...
Source:ADAM
Date:April 5, 2009
Anemia is a condition characterized by abnormally low levels of healthy red blood cells or hemoglobin.
Source:Gale Encyclopedia of Alternative Medicine
Anemia is a blood disorder characterized by abnormally low levels of healthy red blood cells (RBCs) or reduced hemoglobin (Hgb), the iron-bearing protein in red blood cells that delivers oxygen to tissues throughout the body. Reduced blood cell vo...
Source:Gale Encyclopedia of Children's Health
Anemia is characterized by an abnormally low number of red blood cells in the circulating blood. It frequently affects patients with cancer. In fact, in many cancer diagnoses such as multiple myeloma and acute leukemia , the presence of anemia may...
Source:Gale Encyclopedia of Cancer
Deficiency of red cells, or hemoglobin, in the blood. Anemia is a medical condition in which the quantity of red blood cells falls below an acceptable level. Red blood cells, produced in the bone marrow, contain hemoglobin, the component of blood ...
Source:Gale Encyclopedia of Childhood and Adolescence
Anemia is a condition characterized by abnormally low levels of healthy red blood cells or hemoglobin (the component of red blood cells that delivers oxygen to tissues throughout the body).
Source:Gale Encyclopedia of Nursing and Allied Health
Anemia is a condition characterized by abnormally low levels of healthy red blood cells or hemoglobin (the component of red blood cells that delivers oxygen to tissues throughout the body).
Source:Gale Encyclopedia of Medicine
Anemia affects more than 30 percent of the world's population, and it is one of the most important worldwide health problems. It has a significant prevalence in both developing and industrialized nations. Causes of anemia include nutritional defic...
Source:Gale Nutrition and Well-Being A to Z
Bleeding refers to the loss of blood. Bleeding can happen inside the body (internally) or outside the body (externally. It may occur: Inside the body when blood leaks from blood vessels or organs; Outside the body when blood flows through a natura...
Source:ADAM
Date:January 15, 2009
Hepatitis C is a viral disease that leads to swelling (inflammation) of the liver.
Source:ADAM
Date:October 18, 2009
Hepatitis C is a form of liver inflammation that causes primarily a long-lasting (chronic) disease. Acute (newly developed) hepatitis C is rarely observed as the early disease is generally quite mild. Spread mainly by contact with infected blood, ...
Source:Gale Encyclopedia of Medicine
Hepatitis B is inflammation (irritation and swelling) of the liver due to the hepatitis B virus (HBV. Other types of hepatitis include: Hepatitis A; Hepatitis C; Hepatitis D. See also: Autoimmune hepatitis; Chronic persistent hepatitis; Drug-induc...
Source:ADAM
Date:October 18, 2009
Hepatitis B is a liver disease caused by the hepatitis B virus (HBV).
Source:Gale Encyclopedia of Children's Health
Hepatitis B is a potentially serious form of liver inflammation due to infection by the hepatitis B virus (HBV). It occurs in both rapidly developing (acute) and long-lasting (chronic) forms, and is one of the commonest chronic infectious diseases...
Source:Gale Encyclopedia of Medicine
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior. See also: Alzheimer's disease
Source:ADAM
Date:August 29, 2009
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, and behavior. See also: Dementia; Alzheimer disease.
Source:ADAM
Date:August 31, 2009
Dementia is a loss of mental ability severe enough to interfere with normal activities of daily living, lasting more than six months, not present since birth, and not associated with a loss or alteration of consciousness.
Source:Gale Encyclopedia of Alternative Medicine
Dementia is not a specific disorder or disease. It is a syndrome (group of symptoms) associated with a progressive loss of memory and other intellectual functions that is serious enough to interfere with the tasks of daily life. Dementia can occur...
Source:Gale Encyclopedia of Genetic Disorders Part I
Dementia is not a specific disorder or disease. It is a syndrome (group of symptoms) associated with a progressive loss of memory and other intellectual functions that is serious enough to interfere with the tasks of daily life. Dementia can occur...
Source:Gale Encyclopedia of Genetic Disorders Part II
Dementia is a loss of mental ability severe enough to interfere with normal activities of daily living, lasting more than six months, not present since birth, and not associated with a loss or alteration of consciousness.
Source:Gale Encyclopedia of Medicine
Dementia is not a specific disorder or disease. It is a syndrome (group of symptoms) associated with a progressive loss of memory and other intellectual functions that is serious enough to interfere with performing the tasks of daily life. Dementi...
Source:Gale Encyclopedia of Mental Disorders
The term dementia refers to symptoms, including changes in memory, personality, and behavior, that result from a change in the functioning of the brain. These declining changes are severe enough to impair the ability of a person to perform a funct...
Source:Gale Encyclopedia of Neurological Disorders
Dementia is a condition characterized by a progressive, irreversible decline in mental ability, accompanied by changes in behavior and personality. There is commonly a loss of memory and skills that are required to carry out activities of daily li...
Source:Gale Encyclopedia of Nursing and Allied Health
Dementia is a condition characterized by a chronic decline in cognitive functions contrasted with a person's usual state of functioning. It is seen most often in people sixty-five years and older, and the incidence increases with age. Dementia occ...
Source:Gale Encyclopedia of Public Health
A seizure is the physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain. See also: Generalized tonic clonic seizure; Partial (focal) seizure; Petit mal (absence) seizure; Epilepsy; Fever (...
Source:ADAM
Date:March 29, 2009
A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain. Epilepsy is a condition characterized by recurrent seizu...
Source:Gale Encyclopedia of Neurological Disorders
A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain . Epilepsy is a condition characterized by recurrent seiz...
Source:Gale Encyclopedia of Mental Disorders
A temporary series of uncontrollable muscle spasms brought on by unusual electrical activity in the brain. Also known as convulsion, clonic seizure, or tonic-clonic seizure. A seizure is characterized by a sudden episode of un- controllable brain ...
Source:Gale Encyclopedia of Childhood and Adolescence
If more pressure is put on a bone than it can stand, it will split or break. A break of any size is called a fracture. If the broken bone punctures the skin, it is called an open fracture (compound fracture. A stress fracture is a hairline crack i...
Source:ADAM
Date:May 2, 2009
A fracture is a complete or incomplete break in a bone resulting from the application of excessive force. An injury may be classified as a fracture-dislocation when a fracture involves the bony structures of any joint with associated dislocation o...
Source:Gale Encyclopedia of Nursing and Allied Health
A fracture is a complete or incomplete break in a bone resulting from the application of excessive force.
Source:Gale Encyclopedia of Medicine
A fracture is a complete or incomplete break in a bone resulting from the application of excessive force.
Source:Gale Encyclopedia of Children's Health
A fracture is a crack or break in a bone. It results from the application of excessive force through injuries, such as a fall or a hard blow.
Source:Gale Encyclopedia of Alternative Medicine
Primary infertility describes couples who have never been able to become pregnant after at least 1 year of unprotected sex (intercourse. Secondary infertility describes couples who have been pregnant at least once, but have not been able to become...
Source:ADAM
Date:March 17, 2009
Infertility is the failure of a couple to conceive a pregnancy after trying to do so for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conc...
Source:Gale Encyclopedia of Alternative Medicine
Infertility is the failure of a couple to conceive a pregnancy after trying to do so for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conc...
Source:Gale Encyclopedia of Medicine
Infertility is the failure to conceive a pregnancy after attempting for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conceived, but are un...
Source:Gale Encyclopedia of Nursing and Allied Health
Question: Do most men have difficulty achieving or maintaining an erection (impotence) as they grow older? Answer: Getting older does not mean you will experience impotence, although in many men, sexual responses may become slower and less intense...
Source:ADAM
Date:August 1, 2009
Erectile dysfunction (ED) may be defined as the consistent inability to achieve or maintain an erection sufficient to permit satisfactory sexual intercourse. The word "consistent" is included in the definition because most men experience transient...
Source:Gale Encyclopedia of Mental Disorders
Impotence, often called erectile dysfunction, refers to the male's inability to achieve or maintain an erection long enough to engage in sexual intercourse.
Source:Gale Encyclopedia of Medicine
Impotence, also known as erectile dysfunction, is the inability to achieve or maintain an erection long enough to engage in sexual intercourse.
Source:Gale Encyclopedia of Alternative Medicine
Peripheral neuropathy is a problem with the nerves that carry information to and from the brain and spinal cord. This can produce pain, loss of sensation, and an inability to control muscles. "Peripheral" means nerves further out from the center o...
Source:ADAM
Date:September 11, 2008
Peripheral neuropathy is a condition involving the nerves of the peripheral portion of the nervous system. Neurobiologists describe the peripheral nervous system as any part of that system found in the arms or legs. The nerves that traverse the ar...
Source:Gale Encyclopedia of Neurological Disorders
The term peripheral neuropathy encompasses a wide range of disorders in which the nerves outside of the brain and spinal cord—peripheral nerves—have been damaged. Peripheral neuropathy may also be referred to as peripheral neuritis, or if many ner...
Source:Gale Encyclopedia of Medicine
Similar to electrical wiring in a house, the body has a highly complex network of nerves made up of bundles of neurons, axons, and dendrites. This network originates in the brain and extends down through the spinal cord. These nerves branch off at...
Source:Gale Encyclopedia of Alternative Medicine
Hepatic encephalopathy is a worsening of brain function that occurs when the liver is no longer able to remove toxic substances in the blood.
Source:ADAM
Date:October 13, 2009
Encephalopathy is a condition characterized by altered brain function and structure. It is caused by diffuse brain disease.
Source:Gale Encyclopedia of Neurological Disorders
Pericarditis is a condition in which the sac-like covering around the heart (pericardium) becomes inflamed. See also: Bacterial pericarditis
Source:ADAM
Date:May 15, 2008
Pericarditis is an inflammation of the two layers of the thin, sac-like membrane that surrounds the heart. This membrane is called the pericardium, so the term pericarditis means inflammation of the pericardium.
Source:Gale Encyclopedia of Medicine
A miscarriage is the spontaneous loss of a fetus before the 20th week of pregnancy. (Pregnancy losses after the 20th week are called preterm deliveries) A miscarriage may also be called a "spontaneous abortion." This refers to naturally occurring ...
Source:ADAM
Date:February 19, 2009
A miscarriage is the loss of an embryo or fetus before the twentieth week of pregnancy . A pregnancy loss after the twentieth week is called a stillbirth.
Source:Gale Encyclopedia of Nursing and Allied Health
Although it may be psychologically difficult, if a woman has a miscarriage at home she should try to collect any material she passes in a clean container for analysis in a laboratory. This may help determine why the miscarriage occurred. An incomp...
Source:Gale Encyclopedia of Medicine
Cardiac tamponade is the compression of the heart that occurs when blood or fluid builds up in the space between the myocardium (the muscle of the heart) and the pericardium (the outer covering sac of the heart.
Source:ADAM
Date:May 15, 2008
Cardiac tamponade occurs when the heart is squeezed by fluid that collects inside the sac that surrounds it.
Source:Gale Encyclopedia of Medicine
A pinched nerve is caused by some anatomical structure putting pressure on a nerve and impairing its function. This problem may occur in many different areas of the body. The most common places are those in which a nerve must travel through a smal...
Source:Gale Encyclopedia of Alternative Medicine
Nerve compression is the restriction in the space around a nerve that can occur due to several reasons. Functioning of the nerve is compromised.
Source:Gale Encyclopedia of Neurological Disorders
A pinched nerve is a general term that describes an injury to a nerve or group of nerves. The damage may include compression, constriction or stretching. Nerves that pass near or through bones or other rigid tissues are most susceptible to pinchin...
Source:Gale Encyclopedia of Neurological Disorders
Gastrointestinal (GI) bleeding refers to any bleeding that starts in the gastrointestinal tract, which extends from the mouth to the anus. The amount of bleeding can range from nearly undetectable to acute, massive, and life threatening. Bleeding ...
Source:ADAM
Date:January 28, 2009
GI bleeding studies uses radioactive materials in the investigation of bleeding from the gastrointestinal (GI) tract. These studies go under various names such as "GI bleeding scans" or "Tagged red blood cell scans." They are performed and interpr...
Source:Gale Encyclopedia of Medicine
Immunodeficiency disorders occur when the body's immune response is reduced or absent. See also: Autoimmune disorders
Source:ADAM
Date:May 2, 2008
Dry skin is most common in your lower legs, arms, flanks (sides of the abdomen), and thighs. The symptoms most often associated with dry skin include: Scaling; Itching; Cracks in the skin.
Source:ADAM
Date:August 8, 2009
Hyperkalemia is higher-than-normal levels of potassium in the blood.
Source:ADAM
Date:November 15, 2009
The normal concentration of potassium in the serum is in the range of 3.5 to 5.0 mM. Hyperkalemia refers to serum or plasma levels of potassium ions above 5.0 mM. The concentration of potassium is often expressed in units of milliequivalents per l...
Source:Gale Encyclopedia of Medicine
Joints serve as links between structures; in this case, bones in the human body. There are numerous joints in the body that act to stabilize and control bony segments. One example is the knee joint, which joins the femur and tibia. This joint allo...
Source:Gale Encyclopedia of Nursing and Allied Health
Inhibited sexual desire (ISD) refers to a low level of sexual interest. A person with ISD will not start, or respond to their partner's desire for, sexual activity. ISD can be primary (in which the person has never felt much sexual desire or inter...
Source:ADAM
Date:August 1, 2008
Female sexual arousal disorder (FSAD) occurs when a woman is continually unable to attain or maintain arousal and lubrication during intercourse, is unable to reach orgasm, or has no desire for sexual intercourse.
Source:Gale Encyclopedia of Medicine
Platelets are elements within the bloodstream that recognize and cling to damaged areas inside blood vessels. When they do this, the platelets trigger a series of chemical changes that result in the formation of a blood clot. There are certain her...
Source:Gale Encyclopedia of Medicine
An electrolyte disorder is an imbalance of certain ionized salts (i.e., bicarbonate, calcium, chloride, magnesium, phosphate, potassium, and sodium) in the blood.
Source:Gale Encyclopedia of Medicine
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