BloodApps Tools

Platelet Support

Corrected Platelet Count Increment

Estimate count increment, body surface area, and corrected platelet count increment after transfusion.

Platelet count units

Height and weight units

Pre-transfusion platelet countDefaulted to the worked example. Platelet count values are numerically equivalent between x 10^9/L and x 10^3/uL.

x 10^9/L

Post-transfusion platelet countCollect at either 1 hour or 20 hours after transfusion.

x 10^9/L

Time after transfusion

Height

Weight

Platelet unit contentOne apheresis unit is often around 3.0 x 10^11 platelets. The worked example uses 4.0 x 10^11 platelets.

x 10^11 platelets

Live Result

Count increment

BSA

2 m^2

CCI

10,017

Formula: (20 x 2 m^2) / 4 x 1,000 = 10,017

Interpretation note

The result is shown in the conventional clinical format where units are usually omitted in reporting. Common informal thresholds are around 7,500 at 1 hour and 4,500 at 20 hours, but this should be presented as guidance rather than advice.

The current defaults reproduce the example you gave, yielding a CCI of approximately 10,000.