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How to draw an arterial blood gas
Keep an ice pack ready and labelled with the patient's name.
Arterial blood is prone for clotting and needs to be put in an ice pack as soon as it is drawn.
Take a 2cc syringe and load about 0.2cc of heparin solution in it.
Heparin prevents clotting but too much of it can interfere with the results. Check the radial pulsation of the patient.