Quick Review Cards for Medical Laboratory Science

Differences in Analyte Concentrations Clinical Chemistry Review 72

DIFFERENCE ANALYTE(S)

Higher in plasma than serum Total protein, LD, Ca2+

Higher in serum than plasma K+, phosphate, glucose, CK, bicarbonate, ALP, albumin, AST, triglycerides

Higher in plasma than whole blood Glucose

Higher in capillary blood than venous blood Glucose (in postprandial specimen), K+

Higher in venous blood than capillary blood Ca2+, total protein

Higher in RBCs than plasma K+, phosphate, Mg2+

Higher in plasma than RBCs Na+, chloride