[Problems of commercially available heparinized syringes in measurements of blood gases and electrolytes].
We compared the measured values of blood gases and electrolytes by commercially available heparinized syringes (PZ-II, Quick-lite and QS90) with normal and decreased calcium concentrations. With normal calcium concentration, the measured value of [Ca2+] in PZ-II was significantly less than that in Quick-lite and QS90, seemingly due to contained heparin. With hypocalcemia, the measured values of [Ca2+] in Quick-lite and QS90 were significantly greater than those in non-heparinized syringe. The pH and PO2 decreased, and PCO2 increased as time passed. The [Ca2+] was suggested to be more influenced by heparin than by acid-base balance.
Kinoshita
H
H
Department of Anesthesiology, Niigata University School of Medicine.
Fukuda
S
S
Ataka
T
T
Watanabe
I
I
Shimoji
K
K
D001784:Blood Gas Analysis / Q000295:instrumentation*; D002118:Calcium; D004573:Electrolytes / Q000097:blood*; D006493:Heparin; D006801:Humans; D013594:Syringes
D004573:Electrolytes; D006493:Heparin; D002118:Calcium