<prompt> Spherocytosis in peripheral blood smear is seen in which of the following?Post-transfusionHereditary spherocytosisHemolytic disease of newbornAll of the above  <response>: Spherocytosis is seen in Hereditary spherocytosis Autoimmune hemolytic anemia Hemolytic disease of newborn Post-transfusion Heinz body hemolytic anemia G6PD deficiency, etc. Water-dilution hemolysis IV water infusion or drowning fresh water Fragmentation hemolysis Burns, mechanical trauma Spherocytes represent red cells, with the most decreased surface area:volume ratio seen in hereditary spherocytosis, immune hemolytic anemia, stored blood, Heinz body hemolytic anemia, and caused by cell fragmentation. 