Hematocrit Test and Clinical Significance

What is the specific gravity of red blood cells (rbcs) according to the provided text?

What is the principal use of microhematocrite centrifuge mentioned in the text?

Which condition is associated with an increase in packed cell volume (PCV), as mentioned in the text?

What is the primary function of plasma proteins in relation to rbcs?

What is the mechanism of action of heparin, the anticoagulant used in the experiment described in the text?

Under which conditions does the erythrocyte sedimentation rate (esr) increase physiologically?

What is the clinical significance of erythrocyte sedimentation rate (esr) as a diagnostic tool?

What is the reversible arrangement of rbcs called due to the neutralization of their negative charges by plasma proteins?

Which anti-coagulant is used in the experiment mentioned in the text, and how does it work?