SELP and Sepsis: Regarding flow cytometry, MCFplatelet was negatively correlated with GPIb CD42b MFI in inactivated platelets (r = −0.32, p = 0.003), with GPIb CD42b receptors in inactivated platelets (r = −0.31, p = 0.003) and GPIb CD42b MFI in activated platelets (r = −0.27, p = 0.01) in the sepsis group, and there were P-selectin 62p receptors in the inactivated platelets (r = −0.50, p = 0.004) in the control group.