CARDIOLOGY

Recognize the clinical manifestations of atrial septal defect.

Explanation:

ASD presents subtly but if you think of it whenever you find the following pattern, you will be OK. Systolic murmur due to excess flow through the pulmonary valve and signs of pulmonary hypertension associated with prominent pulmonary arteries on CXR. Widely (and fixed) split S2 is diagnostic but frequently not mentioned in exams.