{{:nchsls:c:biochemistry:document:pepsin_for_ise_wash.ods|PROCEDURE FOR MAKING PEPSIN FOR ISE WASH ( current method )}} {{:nchsls:c:biochemistry:document:old_method_for_preparation_of_pepsin_for_ise_wash.odt|PROCEDURE FOR MAKING PEPSIN FOR ISE WASH ( old method )}} ====Checking Pepsin activity==== - Take fibrin clot ( from PT tube/ clotted sample) . - Take 2 small fibrin clots in 2 different glass tubes. - Add 0.5 ml di water in 1 glass tube. This is control. - Add 0.5 ml pepsin in another glass tube . This is test sample. - Gently mix for 5 minutes at room temperature. - If clot dissolve in test glass tube and not in control sample then Pepsin is active.