Are there two ways that Hematocrit is measured?

Question

I know of one way whereby the hematocrit level is measured as a percentage of blood volume occupied by red blood cells. It is normally between 0.42 and 0.52 for males and between 0.36 and 0.48 for women. However, in a recent conversation with a hospital technician she expressed her hematocrit level as flucating between "8" and "10." Do these figures represent some type of conversion of the percentage value? I'm sure that she knew what she was talking about.

Thanks, Joe Conrad

Answer 1

she's refering to her "hemoglobin" value, which is a measure of the oxygen carrying molecule in the red blood cells. the hemoglobin and hematocrit are almost always proportionate in an approximately 1:3 ratio.

most labs commonly draw both a hemoglobin and hematocrit value (called an "H/H")

Answer 2

No, she was probably just meaning to say "hemoglobin," which value usually is pretty close to 1/3d the hematocrit. But these days one pretty well always gets a hemogram done on a flow cytometer, and only us old geezers even know about spinning capillary tubes in a centrifuge to get a Hct. And you don't need the decimals. She was talking about a Hct of 24 to 30.

Answer 3

I checked several sources, and hematocrit is always a percentage, and 8-10% would be way below normal, so you'd have to ask that particular technician what she meant. Ask her to explain it to you. Sounds like she's using some obscure system based on 10 as normal.

Answer 4

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Answer 5

hey... i'm not a old geezer and i could do a spun hct in my sleep :)

if she is talking about her hgb levels then she is anemic..., although i dont have a clue what else she could be talking about

hct can be measured (ex- spun hct method) or it can be calculated.