Question

which of the following diagnostic procedures measures the oxygen level in the blood?
a ventilation - perfusion scan
b oximetry
c bronchography
d polysomnography

Explanation:

Oximetry is a non - invasive diagnostic procedure that measures the oxygen saturation level in the blood. A ventilation - perfusion scan is used to evaluate blood flow and air movement in the lungs. Bronchography is used to visualize the bronchial tree. Polysomnography is used to diagnose sleep disorders.

Answer:

B. oximetry