<prompt> Perls stain or prussion blue test is for:BilirubinCalciumHemosiderinGlycogen  <response>: Perls stain Prussian-Blue Reaction is to demonstrate Ferric salts in tissues. These are seen as iron granules in bone marrow macrophages, erythroblasts Sideroblasts and erythrocytes Siderocytes in blood films and haemosiderin in spun urine. 