According to the product insert whole blood sample can be tested using product NWK-GSH01. But on Page 7 of the product insert it says: “Collect samples using EDTA, heparin, citrate or ACD anticoagulant." We are confused about this. Does "Whole blood" just mean "Plasma"?
No whole blood does not mean plasma but whole blood does need to be collected with anticoagulant present. If anticoagulant is not present the sample will clot and cease to be representative of whole blood (a non-clotted mixture of plasma, RBCs and white cells). Whole blood that is left to clot will yield serum and a big clot that is not acceptable for testing GSH.