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What's your hematocrit level?(6 posts)

What's your hematocrit level?Bulldozer
Aug 25, 2003 6:23 AM
I went to give blood plasma on Sunday and for the first time I realized that they took my hematocrit level. It was 52%. I didn't know if that was high, low or average. I have only been out riding about 10 times this summer so I imagine it could be higher with more riding. Or, does riding have nothing to do with it? What's the pro-level cutoff for high levels (aka, doping)?

Does living at altitude (6k feet) have something to do with it? I've hiked several 14'ers this summer but doubt that has much of an effect... Does anyone purposely not give blood for fear of hurting your performance?
Looks like altitude might play a parthrv
Aug 25, 2003 7:20 AM
From the site: http://www.medfriendly.com/hematocrit.html :

" Many factors can cause hematocrit to be too high. The most common cause is when too much water or body fluid has left the body. This would cause less fluid in relation to the amount of cells. Hematocrit can also be high when there is an increased amount of red blood cells in response to a burn injury, shock, or some other type of trauma. A high hematocrit level can occur during polycythemia vera, which is a condition of unknown cause in which there is a long-term increase in red blood cells and other types of cells. Exposure to high elevations for long periods produces an increase in red blood cells so that the body can receive more oxygen. The reason the body needs more oxygen at high elevations is because there is a lower amount of oxygen at higher heights."

From what I recall, the cutoff for doping is like 49.9%, so you'd have your yellow jersey ripped off your back!

Something I never will have to worry about, since my hovers around 39 or less.

hrv
Can U say....MO-LASS-ES? nmeschelon
Aug 25, 2003 7:22 AM
Although the doping limit is indeed 50%...amflyer
Aug 25, 2003 7:54 AM
...the normal values for an adult male are 40-52%, according to McKenzie et. al.

Steve
McKenzie?53T
Aug 25, 2003 2:14 PM
The sex reserachers? Mine is about 38, well within the normal range.
McKenzie?amflyer
Aug 25, 2003 2:22 PM
no...Bob and Doug, hoser!

Cereally though, Shirlyn B. to be exact. Just the author of my old Hematology text.

Steve