From: Growth factor levels in leukocyte-poor platelet-rich plasma and correlations with donor age, gender, and platelets in the Japanese population
Whole blood
WBC (×102 /μL)
57.8 ± 17.6
RBC (×105 /μL)
47.5 ± 4.8
PLT (× 104 /μL)
23.4 ± 4.4
PRP
0.3 ± 0.8
0.2 ± 0.1
PLT (×104 /μL)
41.4 ± 12.2
PRP/Whole blood
ratio
1.8