Work out platelet dose instantly with clear inputs, formula shown and shareable results.
Applies the one unit per 10 kg rule for pooled platelets and estimates the expected count increment from blood volume and the usual 67 percent recovery.
Platelet dose
Units = weight / 10 x units per 10 kg; expected increment = platelets transfused x recovery / blood volume, with blood volume about 75 mL/kg
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
An adult dose typically raises the count by 20 to 40 x10^9/L in a patient without consumption or splenomegaly.
When two consecutive transfusions give a poor increment, prompting HLA antibody testing.