Warm autoimmune hemolytic anemia is mediated by which antibody class?

A 52-year-old man with no known cardiovascular disease asks how to best reduce his long-term CVD risk. According to the 2019 ACC/AHA primary prevention guidelines, which recommendation should be emphasized first?

The word event comes from the Latin word ‘e-venire,’ meaning 

Which test is MOST useful to support the diagnosis of heart failure in a dyspneic patient?

Which manifestations may indicate intrathoracic involvement of lung cancer? (Select all that apply)

The 4‑month TB regimen (2HPZM/2HPM) includes which medication not found in traditional HRZE therapy

A patient presents with severe mitral stenosis. Which physiologic consequence is most likely?

A 28‑year‑old woman presents with RLQ abdominal pain, non‑bloody diarrhea, weight loss, and perianal fissures. Colonoscopy reveals skip lesions.What is the most likely diagnosis

The New York Heart Association Class I- IV is used to classify who is at risk for heart failure, who has pre-heart failure and who has clinical heart failure. 

A 66‑year‑old man has painless bright‑red blood on toilet paper, no abdominal pain, normal vitals, and a history of constipation. Which diagnosis is most likely?