JOSEPH E. HIRSH, M.D., F.A.C.P.
In 1918, Fåhraeus1 called attention to the fact that there was an increase in the sedimentation rate of red blood cells in the citrated blood of pregnant women. This was immediately hailed as a new test for pregnancy. However, it was soon discarded, as it was found to be unreliable, until after the third month of pregnancy.
Fåhraeus was not the first to make this interesting observation. Galen, as early as the year 200, pointed out that if blood were allowed to stand in a tube, a white line would form at the top of the blood. While he did
HIRSH JE. THE VALUE OF THE SEDIMENTATION TEST AS A DIAGNOSTIC AID1. Ann Intern Med. 1936;10:495–504. doi: 10.7326/0003-4819-10-4-495
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Published: Ann Intern Med. 1936;10(4):495-504.
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