The right solution whether you run one test per day or 100 – in the lab or at the point of care.whole blood samples in vitro: Acidity and alkalinity (pH), partial pressure of carbon dioxide (pCO2), partial pressure of oxygen (pO2), sodium ion (Na+), potassium ion (K+), calcium ion (Ca++), glucose (Glu), lactic acid (Lac), hematocrit (Hct) parameters.