why is ESR low in polycythemia rubra Vera?
Sedimentation of rbcs is impeded by other rbcs around it . So more the RBCs are in no. more is the impedance and more is the impedance less is the sedimentation rate .
So ESR is more in anemia and less in Polycythemia. Just imagine you want to reach station and you took taxi , more traffic you will take more time , less traffic you will take less time .
alright thanks!