Levels of oxygen, carbon dioxide, and pH in the blood are tested by
A) pulmonary function test
B) arterial blood gases
C) ventilation-perfusion scanning
D) spirometry

Question

Quizplus · Accepted Answer

Arterial blood gases measure the levels of oxygen, carbon dioxide, and pH in the blood, making it the best choice for this question. Pulmonary function tests and spirometry measure lung function and air flow, while ventilation-perfusion scanning is a test that evaluates how well air and blood flow in and out of the lungs. None of these tests directly measure blood gas levels.

Levels of Oxygen, Carbon Dioxide, and PH in the Blood