reactive hyperemia definition
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- Introduction: Reactive hyperemia. Description of Reactive hyperemia. Reactive hyperemia: excess of blood in a body part following restoration of its temporarily arrested flow.
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Hyperkalemia General Discussion. Hyperkalemia is a condition caused by an abnormally high concentration of potassium in the blood. Potassium is a key element in contraction of muscles (including the heart) and for the functioning of many complicated proteins (enzymes).
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- polycythemia rubra vera (PV). Etymology: Gk, polys, many, kytos, cell, haima, blood, L, ruber, red, verus, true. a condition of unknown cause characterized by a marked increase in the red blood cell count, packed cell volume, cellular hemoglobin, leukocytes, platelets, and total blood volume.The skin and mucous membranes acquire a maroon or plum color, and hepatomegaly, splenomegaly, hypertension, and neurologic symptoms develop. condition of unknown cause characterized by a marked increase in the red blood cell count, packed cell volume, cellular hemoglobin, leukocytes, platelets, and total blood volume. The skin and mucous membranes acquire a maroon or plum color, and hepatomegaly, splenomegaly, hypertension, and neurologic symptoms develop.
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Blood Types Most reactive. A patient is considered to have blood type Rh+ if they have the D antigen on red blood cells. If she doesn't have the D antigen, they are considered to be Rh-.
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hypersplenism Hypersplenism is a type of disorder which causes the spleen to rapidly and prematurely destroy blood cells. The spleen is located in the upper left area of the abdomen. One of this organ's major functions is to remove blood cells from the body's bloodstream. In hypersplenism, its normal function accelerates, and it begins to automatically remove cells that may still be normal in function.
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Hyperkalemia Hyperkalemia, also spelled hyperkalaemia, is an elevated level of potassium (K+) in the blood serum.[1] Normal potassium levels are between 3.5 and 5.0 mmol/L (3.5 and 5.0 mEq/L) with levels above 5.5 mmol/L defined as hyperkalemia.[3][4] Typically this results in no symptoms.[1] Occasionally when severe it results in palpitations, muscle pain, ...
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polycythemia [pol″e-si-the´me-ah] an increase in the total red blood cell mass of the blood; called also erythrocythemia, hypercythemia, and hypererythrocythemia. There are two distinct forms of the disease: Primary polycythemia (polycythemia vera) is a myeloproliferative disorder of unknown etiology.
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- The list of signs and symptoms mentioned in various sources for Hyperemia includes the 3 symptoms listed below: 1  Redness of affected area. 2  Warmth of affected area. 3  Flushing. more information...».
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Causes Of Basopenia Reactive hyperemia information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues.
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Hyperkalemia Hyperkalemia: Abnormally high levels of potassium in the blood. See detailed information below for a list of 110 causes of Hyperkalemia, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes. » Review Causes of Hyperkalemia: Causes | Symptom Checker » | Assessment Questionnaire ».
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Polycythemia Polycythemia (also known as polycythaemia or polyglobulia) is a disease state in which the proportion of blood volume that is occupied by red blood cells increases.Blood volume proportions can be measured as hematocrit.bsolute polycythemia [edit]. The overproduction of red blood cells may be due to a primary process in the bone marrow (a so-called myeloproliferative syndrome), or it may be a reaction to chronically low oxygen levels or, rarely, a malignancy.
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- Other symptoms of reactive arthritis include: 1  feeling unusually tired (fatigue). 2  mild fever (a high temperature between 37-38°C or 98.6-101.0°F). 3  mouth ulcers. 4  painless white rashes inside your mouth. 5  a skin rash. 6  your nails can become thick and crumbly. 7  abdominal pain. 8  bouts of diarrhoea.
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Reactive Hyperemia In the following figure, the left panel shows the effects of a 2 min arterial occlusion on blood flow. In this example, blood flow goes to zero during arterial occlusion. When the occlusion is released, blood flow rapidly increases (i.e., hyperemia occurs) that lasts for several minutes.The hyperemia occurs because during the period of occlusion, tissue hypoxia and a build up of vasodilator metabolites (e.g., adenosine) dilate arterioles and decrease vascular resistance.hen the occlusion is released, blood flow rapidly increases (i.e., hyperemia occurs) that lasts for several minutes. The hyperemia occurs because during the period of occlusion, tissue hypoxia and a build up of vasodilator metabolites (e.g., adenosine) dilate arterioles and decrease vascular resistance.
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- From Wikipedia, the free encyclopedia. Hypernatremia or hypernatraemia is an elevated sodium level in the blood. Hypernatremia is generally not caused by an excess of sodium, but rather by a relative deficit of free water in the body. For this reason, hypernatremia often coincides with dehydration.
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Acute Kidney Injury: A Guide to Diagnosis and Management Hyperkalemia is a potentially life-threatening metabolic problem caused by inability of the kidneys to excrete potassium, impairment of the mechanisms that move potassium from the circulation into the cells, or a combination of these factors.
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Practice Essentials Hyperammonemia is a metabolic condition characterized by elevated levels of ammonia in the blood. Increased entry of ammonia to the brain is a primary cause of neurologic disorders, such as congenital deficiencies of urea cycle enzymes, hepatic encephalopathies, Reye syndrome, several other metabolic disorders, and some toxic encephalopathies.
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Hypertensive emergency A hypertensive emergency, also known as malignant hypertension, is high blood pressure with potentially life-threatening symptoms and signs indicative of acute impairment of one or more organ systems (especially the central nervous system, cardiovascular system or the kidneys).
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- Definition of HYPERCHOLESTEROLEMIA. : the presence of excess cholesterol in the blood. — hy·per·cho·les·ter·ol·emic \-mik\ adjective. ADVERTISEMENT.
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Hyperkalemia (High Blood Potassium) Hyperkalemia is a relatively common disturbance of electrolytes. Most cases of hyperkalemia are mild and may not produce any symptoms at all. Typically, hyperkalemia that develops slowly over time produces fewer symptoms than a sudden rise in potassium levels. Usually, symptoms do not become apparent until potassium levels are very high (7.0 mEq/l or greater).
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Macrocytic anemia A macrocytic class of anemia is an anemia (defined as blood with an insufficient concentration of hemoglobin) in which the red blood cells (erythrocytes) are larger than their normal volume. The normal erythrocyte volume in humans is about 80 to 100 femtoliters (fL= 10 −15 L).
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Hypertriglyceridemia Hypertriglyceridemia denotes high (hyper-) blood levels (-emia) of triglycerides, the most abundant fatty molecule in most organisms. Elevated levels of triglycerides are associated with atherosclerosis, even in the absence of hypercholesterolemia (high cholesterol levels), and predispose to cardiovascular disease. Very high triglyceride levels also increase the risk of acute pancreatitis.
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Hyperkalemia (High Potassium) Hyperkalemia (High Potassium) What is hyperkalemia? Hyperkalemia is a higher than normal level of potassium in the blood. Although mild cases may not produce symptoms and may be easy to treat, severe cases of hyperkalemia that are left untreated can lead to fatal cardiac arrhythmias, which are abnormal heart rhythms.
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Definitions &Translations Freebase(0.00 / 0 votes)Rate this definition: Hyperammonemia. Hyperammonemia is a metabolic disturbance characterised by an excess of ammonia in the blood. It is a dangerous condition that may lead to encephalopathy and death. It may be primary or secondary. Ammonia is a substance that contains nitrogen.
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- hyperoxia hy·per·ox·i·a (hī'pər-ŏk'sē-ə) n. An excess of oxygen in tissues and organs. A higher than normal oxygen tension, such as that produced by breathing air or oxygen at greater than atmospheric pressures.
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Reactive Hyperemia: Definition & Test Ok, so reactive hyperemia might sound like a pretty obvious phenomenon-not so special, you occlude blood flow to an area, the blood pressure builds behind the point of the blockage and then, when you remove the occlusion, blood rushes to the area, temporarily increasing blood flow.esson Summary. Reactive hyperemia refers to a temporary increase in blood flow to an area after a period of arterial occlusion. Vasodilators secreted by blood deprived cells dilate deprived vessels ensuring that, post occlusion, blood will experience minimal resistance when resupplying the area.
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Hyperaemia Functional hyperaemia is an increase in blood flow to a tissue due to the presence of metabolites and a change in general conditions.