WBR0028

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Author Raviteja Reddy Guddeti MBBS, Aarti Narayan MBBS
Exam Type USMLE Step 2 CK Flash Card
Main Category Internal medicine
Sub Category Cardiovascular
Prompt Kussmaul’s sign is seen in which of the following?
Answer A Acute pericarditis
Answer A Explanation
Answer B Pulmonary embolism
Answer B Explanation
Answer C Right ventricular myocardial infarction
Answer C Explanation
Answer D Chronic constrictive pericarditis
Answer D Explanation
Answer E Cardiac tamponade
Answer E Explanation
Right Answer D
Explanation The correct answer is chronic constrictive pericarditis. Kussmaul’s sign is failure of the central venous pressure to decline during deep inspiration, which causes distended cervical veins, even when the patient is on diuretics. Other conditions that give a positive Kussmaul’s sign are tricuspid stenosis, right ventricular failure and restrictive cardiomyopathy.

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