Thanks for the comments and explanations, guys.
Quote:
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Originally Posted by blkZ28Conv No, hydration will not effect the cholesterol measurements.
The blood volume is tightly controlled within very tight perimeters by your endocrine system, the instantaneous effects of osmosis between the intravascular and extravascular spaces and the kidneys. |
So is it a medical urban myth that drinking a few glasses of water before a blood test will make it easier to hit a vein and/or draw blood?