2 mL Venous blood in a pre-heparinised (1000 IU mL) disposable syringe and needle. Avoid air bubbles. Mix gently 10 times. Seal needle with rubber stopper. Ship refrigerated. DO NOT FREEZE. Outstation samples not accepted.
ISE, Amperometry, Reflectance photometry
This test measures the amount of Oxygen ; Carbon dioxide in the blood flowing in the veins. It also determines the pH of the blood to find how acidic it is. It helps to assess the lung function.