<P> For the majority of tests , blood is usually obtained from the patient 's vein . Other specialized tests , such as the arterial blood gas test , require blood extracted from an artery . Blood gas analysis of arterial blood is primarily used to monitor carbon dioxide and oxygen levels related to pulmonary function , but is also used to measure blood pH and bicarbonate levels for certain metabolic conditions . </P>
<P> For the majority of tests , blood is usually obtained from the patient 's vein . Other specialized tests , such as the arterial blood gas test , require blood extracted from an artery . Blood gas analysis of arterial blood is primarily used to monitor carbon dioxide and oxygen levels related to pulmonary function , but is also used to measure blood pH and bicarbonate levels for certain metabolic conditions . </P>
medical term for a blood test to measure the levels of oxygen in the blood
medical term for a blood test to measure the levels of oxygen in the blood
blood gas test
blood gas test