The number of platelets in a single bag of SDP is

*Since each blood bag (usually 250 mL or 500 mL) contains a relativelysmall number of platelets, it can take as many as a dozen blood bags(usually from 5 to 10 bags, depending on the size of the bloodbags and each donor's plateletcount) to accumulate a single unit ofplatelets (enough for one patient). Apheresis platelets are usually called single donor platelets because they are collected from a single donor with an automated cell separator. Donors usually have an IV line in each arm. ... Single donor platelets offer several advantages over random donorconcentrates including: Less inventory and pooling. Refer bailey and love 27th edition ,pg 21