Claims
- 1. A method for measuring the hemoglobin concentration of the red blood cells in a sample of whole anti-coagulated blood, said method comprising the steps of:
- (a) providing a transparent tube;
- (b) drawing a sample of the blood into the tube;
- (c) positioning a float member in the tube in the blood sample, said float member being made from a material which will float in the red blood cell layer of the blood sample when the tube is centrifuged with the blood sample and float member disposed therein;
- (d) centrifuging the blood sample, float member, and tube to cause layering out of the red blood cells, white blood cells, and plasma, according to their respective densities;
- (e) measuring the length of a portion of the float member which is submerged below the top of the red blood cell layer; and
- (f) calculating the hemoglobin concentration as a function of the float member length which is submerged below the top of the red blood cell layer.
Parent Case Info
This is a continuation of copending application Ser. No. 07/170,771, filed Mar. 21, 1988, now U.S. Pat. No. 4,843,869.
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Continuations (1)
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Number |
Date |
Country |
Parent |
170771 |
Mar 1988 |
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