Mark Robertson Apr 10, 2020:

Sedimentation velocity v. Sedimentation rate 1. Sedimentation velocity (SV-AUC) is an analytical ultracentrifugation method that measures the rate at which molecules move in response to centrifugal force generated in a centrifuge. This sedimentation rate provides information about both the molecular mass and the shape of molecules.

https://www.ap-lab.com/sedimentation-velocity

2. A sedimentation rate is common blood test that is used to detect and monitor inflammation in the body. The sedimentation rate is also called the erythrocyte sedimentation rate because it is a measure of the red blood cells (erythrocytes) sedimenting in a tube over a given period of time.
https://www.medicinenet.com/sedimentation_rate/article.htm

SO, sedimentation velocity is a method that measures sedimentation rate.

I think it is clear from the context that correct answer must therefore be sedimentation rate.

Animus (asker) Apr 9, 2020:

Additional context This abbreviation also appears later in the text, as follows: "Deve realizar análises (hemograma completo com VS) em ambulatório."