Schizonts and late trophozoite stages of plasmodium falciparum not seen in peripheral blood smear because:
(A) They are sequestered in the spleen (B) Due to adherence to the capillary endothelium, they are not seen in peripheral blood (C) Due to antigen-antibody reaction and removal (D) They are seen in mosquito blood
(B) Ans: B. Due to adherence to the capillary endothelium, they are not seen in peripheral blood(Ref: Harrison 1y/e p1371, Jawetz 27/e p719)Plasmodium falciparum:Only ring stages or gametocytes are seen in infected peripheral blood.Schizonts & late trophozoite stages of Plasmodium falciparum are not seen in infected peripheral blood.Parasites make red cells sticky a Tend to be retained in deep capillary beds (except in overwhelming fatal infections).