18 Hrs
Source:
CNN Arabic
Source: CNN Arabic
18 HrsCNN Arabic
Source: CNN Arabic
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A hematocrit test measures the proportion of red blood cells in the total volume of blood. High or low levels may indicate a blood disorder, dehydration, or another health condition. Normal ranges vary according to age, sex, smoking status, and whether someone lives at high altitude. Levels may be low because of blood loss, a low red blood cell count, certain bone marrow disorders, or cancers. They may be high because the body is producing too many red blood cells or because plasma levels are low, often due to dehydration. A doctor may order the test as part of routine screening, to monitor treatment or chronic conditions, or when symptoms such as fatigue, shortness of breath, headaches, or dizziness occur. Symptoms of polycythemia may also include itching after bathing, blurred vision, or unusual bleeding.
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