An obese mother suffers from OSAS. Which of the following inv is best for her?
a. ABG
b. Overnight pulse-oximetry
c. Polysomnography
d. EEG
Ans. The key is B. Overnight pulse-oxymetry. [It is already a diagnosed case of OSAS. So no need for reconfirmation with polysomnography. If like to know the current status or monitor overnight pulse oxymetry is good].