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The Epic Interactive Encyclopedia 1997
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anemia
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1992-09-02
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19 lines
Condition caused by a shortage of
haemoglobin, the oxygen-carrying component of
red blood cells. The main symptoms are
fatigue, pallor, breathlessness,
palpitations, and poor resistance to
infection. Treatment depends on the cause.
Anemia arises either from abnormal loss or
defective production of haemoglobin.
Excessive loss occurs, for instance, with
chronic slow bleeding or with accelerated
destruction or haemolysis, of red blood
cells. Defective production may be due to
iron deficiency or malnutrition, certain
blood diseases (sickle-cell disease and
thalassemia), chronic infection, kidney
disease, or certain kinds of poisoning.
Untreated anaemia taxes the heart and may
prove fatal.