Gem 3500 blood gas analyzers
Ph : Ion selective electrodes, potentiometric
pCO2 : Potentiometric gas permeable membrane
Lactate : Amperometric electrode
Venous Lactate 0.5 - 2.2 mmol/L
Venous PH 7.32 - 7.42
Venous CO2 41 - 51 mmHg
Analysis should be performed as soon as possible to minimize the effect of glycolysis. Testing must be performed within 30 minutes of draw.