A 68-year-old male with a history of hypertension and coronary artery disease presents with fatigue, dyspnea on exertion, and bilateral lower limb swelling.

On examination, jugular venous distention and bibasilar crackles are noted.

What is the most likely diagnosis?

A 58-year-old patient develops hypotension, jugular venous distension, and muffled heart sounds following a myocardial infarction. What is the most likely diagnosis?

Which of the following is a classic symptom of left-sided heart failure?

A 13-year-old girl presents with fever, joint pain, and a new systolic murmur.

Two weeks ago, she had a sore throat.

Which of the following criteria supports the diagnosis of rheumatic fever?

A 32-year-old IV drug user presents with fever, fatigue, and shortness of breath.

A new systolic murmur is heard on auscultation.

Transthoracic echocardiogram reveals vegetations on the tricuspid valve.

What is the most likely causative organism?

Which of the following is a classic histological finding in rheumatic carditis?

Which of the following symptoms is part of the major criteria in the Jones criteria for rheumatic fever?

A 40-year-old man with infective endocarditis develops sudden left-sided weakness. What is the most likely cause of this neurological finding?

Which of the following cardiac structures is most commonly affected in rheumatic fever?