What's the Diagnosis?
The classic cause of pseudomembranous colitis after antibiotic use.
Clostridioides difficile
The most common cause of infective endocarditis in IV drug users.
Staphylococcus aureus
The drug class that reduces mortality after myocardial infarction by reducing cardiac remodeling.
First-line treatment for tuberculosis.
RIPE therapy (rifampin, isoniazid, pyrazinamide, ethambutol)
A patient with chest pain and ST elevations on ECG should receive this immediately.
Emergent reperfusion (PCI)
This intracellular organism causes atypical pneumonia and spreads through contaminated water systems.
Legionella pneumophila
A gram-negative curved rod causing watery diarrhea after ingestion of contaminated seafood.
Vibrio cholerae
The arrhythmia characterized by irregularly irregular rhythm without P waves.
Atrial fibrillation
The antidote for acetaminophen toxicity.
N-acetylcysteine
A patient with tension pneumothorax requires this immediate procedure.
Needle decompression
A patient with hemoptysis, hematuria, and anti-GBM antibodies.
Goodpasture syndrome
A dimorphic fungus causing meningitis in patients with AIDS.
Cryptococcus neoformans
The triad of hypotension, jugular venous distension, and muffled heart sounds.
Beck’s triad (cardiac tamponade)
First-line therapy for spontaneous bacterial peritonitis.
Ceftriaxone or cefotaxime
A patient with unstable bradycardia should receive this treatment immediately.
Transcutaneous pacing
A patient with noncaseating granulomas, bilateral hilar lymphadenopathy, and elevated ACE levels.
Sarcoidosis
This intracellular organism causes atypical pneumonia and spreads through contaminated water systems.
Legionella pneumophila
A widened pulse pressure and bounding pulses are classic for this valvular disorder.
Aortic regurgitation
First-line therapy for tumor lysis syndrome prophylaxis in high-risk patients.
Rasburicase
A patient with suspected giant cell arteritis and vision symptoms should receive this immediately.
High-dose corticosteroids
A patient presents with episodic flushing, diarrhea, bronchospasm, and elevated urinary 5-HIAA.
Carcinoid syndrome
A gram-negative coccobacillus causing ulceroglandular disease from rabbits or ticks.
Francisella tularensis
This congenital cardiac defect is the most common cause of Eisenmenger syndrome.
Ventricular septal defect (VSD)
The antidote used for methanol or ethylene glycol poisoning.
Fomepizole
A patient presents with hypercalcemia, bone pain, anemia, and renal failure. Serum protein electrophoresis suggests multiple myeloma. What is the next step to confirm the diagnosis?
Bone marrow biopsy