Hematocrit Blood Test Topic Guide
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
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Altitude Sickness (Mountain Sickness) Altitude sickness (mountain sickness) is caused when a person's body is not able to adjust to a higher altitude. Acute altitude sickness symptoms fatigue, headache, dizziness, insomnia, nausea, decreased appetite, edema, and social withdrawal. Most cases of altitude sickness are resolved by going to a lower altitude. Altitude sickness can be severe and life-threatening if it progresses to high altitude pulmonary edema (HAPE).