How to break down a USMLE Step 1 question, from MedSmarter with Dr. Jason Colip.
The attached video is the breakdown of another question regarding Cardiology.
A 37-year-old man with no significant past medical history presents to his primary care physician complaining of shortness of breath on exertion for the past several months. The patient also acknowledges recent heart palpitations, but denies cough, chest pain, lower extremity edema, nocturnal dyspnea, or weakness. He further denies any recent illness, and he states that he does not smoke. Cardiac exam shows an irregularly irregular rhythm, a widely split and fixed S2, as well as a mid-systolic ejection murmur over the left upper sternal border. ECG reveals that the patient is in atrial fibrillation. Based on these findings, the physician concludes that these symptoms are due to pathology of which of the following fetal structures?
A. Aorticopulmonary septum
B. Ductus arteriosus
C. Ductus venosus
D. Foramen ovale
E. Interventricular septum
We break down the concepts in simple terms in shorter videos so students can focus on the Educational Objective to get a deep understanding of the concept.
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9 ноя 2021
