Atrial septal defect Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

Learning videos

Flashcards

Expert reviewed

Spaced Repetition

Mobile app

Custom Quizzes

1 of 5

A 15-year-old boy comes to his outpatient provider for evaluation of fatigue and reduced exercise tolerance. He reports having difficulty keeping up with his friends while playing soccer. The patient recently immigrated to the United States. He previously had limited access to medical care. Vitals are within normal limits. On physical examination, a heart murmur can be auscultated at the left lower sternal border. No cyanosis of the skin or mucosal membranes is observed. Cardiac catheterization is performed and yields the results shown below. Which of the following is the most likely explanation of these findings?

Elimination tool

Choose an option:

Right-to-left shunting of blood

Impaired oxygen exchange in the lungs

Left-to-right shunting of blood

Reversal of long-standing left-to-right shunt

Obstruction of blood flow across a cardiac valve