Hemolytic Anemia

– Abnormal or premature destruction of red blood cells and the inability of the bone marrow to produce sufficient RBCs to compensate.
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Aplastic Anemia

– A reduction in the number of circulating red blood cells resulting from bone marrow failure and generally accompanied by agranulocytosis and/or thrombocytopenia.
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Anaphylaxis

– An immediate, acute, systemic reaction resulting from an IgE-mediated antigen-antibody response that can range from mild to life threatening.
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Amyotrophic Lateral Sclerosis

– A rapidly progressive, degenerative disease of the upper and lower motor neurons characterized by atrophy of the hands, arms, legs, and, eventually, the entire body. Seventy percent of individuals die within 5 years of diagnosis.
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Alzheimer’s Disease

– A chronic, progressive, neurologic disorder characterized by degeneration of the neurons in the cerebral cortex and subcortical structures, resulting in irreversible impairment of intellect and memory.
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Aldosteronism, Primary

– A hypertensive disorder resulting from excess production of aldosterone by the adrenal gland.

Causes and Incidence

Most cases are caused by an adenoma of the adrenal gland. Other causes are adrenal nodular hyperplasia and adrenal carcinoma. Only 0.5% to 2% of those with hypertension are affected. The condition is three times more likely to affect women; the typical age ranges from 30 to 50 years.
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