USMLE step 2 CK Exam Questions and Correct Answers

USMLE step 2 CK Exam Questions and Correct Answers pregnant with active HBV - CORRECT ANSWER tx newborn with HBIG and HBV vaccine Beck's triad for tamponade - CORRECT ANSWER hypotension, JVD, muffled heart sounds (also pulsus paradoxus). Electrical alternans subarachnoid hemorrhage - CORRECT ANSWER increased ADH and BNP --> hyponatremia. Tx - water restriction coccidioidomycosis - CORRECT ANSWER SW US, central/south America. Pulm infection - dry cough, weight loss, pleuritic chest pain, erythema multiforme/nodosum, arthralgias histoplasmosis - CORRECT ANSWER SE US, mid Atlantic, central US, caves. Acute PNA, but usually asymptomatic. HIV disseminated infection- hilar LAD, pneumonitis, pancytopenia, hepatosplenomegaly, palatal ulcers. tx- IV amphotericin B followed by lifelong itraconazole. Blastomycosis - CORRECT ANSWER central US (most in Wisconsin). Often asymptomatic or flu-like Sx. Systemic disease- lytic bone lesions, pulmonary infection, skin lesions. Dx- broad-based budding yeast. Tx- itraconazole, amphotericin B aspergillosis - CORRECT ANSWER invasive in IMCD. CXR - cavitary lesions. CT - pulm nodules, halo sign, air crescent sporotrichosis - CORRECT ANSWER subcutaneous infection. Gardeners. Travel up lymphatics for nodules on forearms cryptococcus - CORRECT ANSWER pulm infection often asymptomatic. Usually meningoencephalitis in HIV with CD4<200 hemochromatosis infections - CORRECT ANSWER Listeria monocytogenes, Yersinia enterocolitica, septicemia - Vibrio vulnificus Narcolepsy treatment - CORRECT ANSWER methyldphenidate, modafinil, antidepressants (for cataplexy)