Question of the Day › October 31, 2026
Question of the day: October 31, 2026
Where does most pulmonary gas exchange occur?
Show the answer
A. Across the alveolar-capillary membrane
Thin alveolar and capillary barriers permit diffusion of oxygen and carbon dioxide between air and blood.
An original practice question written against the NBSTSA CST content outline and the NCCT TS-C test plan. It is not an official, recalled, or validated exam question, and practice scores do not predict an exam result.
‹ October 30, 2026 Today’s question November 1, 2026 ›
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