Electrolyte balanced heparin may produce a bias in the measurement of ionized calcium concentration in specimens with abnormally low protein concentration.
Lyon
M E
ME
Department of Laboratory Medicine, School of Medicine, University of Washington, Seattle 98195, USA.
Guajardo
M
M
Laha
T
T
Malik
S
S
Henderson
P J
PJ
Kenny
M A
MA
D016477:Artifacts; D001798:Blood Proteins; D001800:Blood Specimen Collection / Q000379:methods; D002118:Calcium / Q000097:blood*; D006493:Heparin / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D011188:Potassium / Q000097:blood; D012016:Reference Values; D015203:Reproducibility of Results; D012710:Serum Albumin, Bovine; D012964:Sodium / Q000097:blood
D001798:Blood Proteins; D012710:Serum Albumin, Bovine; D006493:Heparin; D012964:Sodium; D011188:Potassium; D002118:Calcium