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Hematocrit Blood Test Topic Guide

Hematocrit (Blood Test) Hematocrit (Blood Test): A hematocrit blood test measures the portion of red blood cells in the blood. Normal values of hematocrit in the blood vary according to age, sex, pregnancy, altitude where a person lives, and vary slightly between testing methods. Causes of low hematocrit levels in the blood may be due to bleeding disorders, destruction of red blood cells, cancer, anemia, and overhydration. High hematocrit levels may be caused by dehydration, smoking, pulmonary conditions, COPD, sleep apnea, and polycythemia vera.
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Dehydration in Adults
Dehydration in Adults Dehydration occurs when the loss of body fluids (mostly water), exceeds the amount that is taken in. Causes of dehydration include
  • fever,
  • vomiting,
  • diarrhea,
  • diseases (diabetes),
  • impaired ability to drink,
  • lack of access to safe drinking water, and
  • injuries to the skin.
Common symptoms of dehydration include
  • dizziness,
  • dry skin,
  • headache,
  • low urine output,
  • tiredness,
  • sleepiness,
  • dry mouth, and
  • increased thirst.
Treatment of dehydration depends upon the severity of the condition.

Hematocrit (Blood Test) Topic Guide - Medications and Vitamins

Medications:

epoetin alfa Epoetin Alfa

Epoetin alfa is a man-made form of a protein that helps your body produce red blood cells. This protein may be reduced when you have kidney failure or use c...learn more »