whole blood volume

Normal people's blood volume accounts for about 6% to 8% of body weight, and adults average about 5,000 ml. The amount of blood during pregnancy can be increased by 23% to 25%. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: The trace blood taken in the fingers and other parts has many factors affecting the measurement results. Therefore, the China Medical Inspection Branch recommends that venous blood should be taken as much as possible. Normal value 51Cr labeled red blood cell method 65 ~ 90ml / kg. Clinical significance (1) reduce bleeding, shock, severe diarrhea, mucinous edema. (2) increase polycythemia vera, leukemia, cirrhosis, congestive heart failure, Banti syndrome. Low results may be diseases: high results of systemic mucinous edema may be diseases: leukemia, cirrhosis precautions The trace blood taken at the finger and other parts has many factors affecting the measurement results. Therefore, the China Medical Inspection Branch recommends that venous blood should be taken as much as possible. The blood cell count results changed a lot in the afternoon, more in the afternoon, and more stable in the morning. In addition to the emergency department, it is better to take blood in the morning. Inspection process It was determined by the 51Cr-labeled red blood cell method. Not suitable for the crowd Generally no taboos. Adverse reactions and risks Discomfort: There may be pain, swelling, tenderness, and visible subcutaneous ecchymosis at the puncture site.

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