CPT (Certified Phlebotomy Technician) Practice Exam

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What is an ABG?

Arterial blood glucose
Arterial blood gas
Automatic blood group
Average blood glucose

The correct answer is: Arterial blood gas

An ABG, or arterial blood gas, is a test that measures the levels of oxygen and carbon dioxide in the blood, as well as the acidity (pH) of the blood. It is essential for assessing a patient's respiratory function and metabolic status. The results help healthcare providers make critical decisions regarding a patient’s treatment, especially in cases of respiratory or metabolic disorders. This choice accurately reflects the standard definition of ABG in medical practice, providing crucial information that can indicate a patient’s oxygenation status, carbon dioxide elimination, and acid-base balance. The other terms, such as arterial blood glucose or average blood glucose, while related to blood testing, do not correctly represent what ABG stands for or its clinical significance. Thus, recognizing ABG as arterial blood gas is fundamental in phlebotomy and clinical settings.