NBME 19 EXAM WITH COMPLETE SOLUTIONS 2023|2024 UPDATE RATED A+

NBME 19 questions and answers Discussion in 'USMLE Step 1' started by conan, Mar 20, 2017. Page 1 of Next > 1. conan Member #1conan, Mar 20, 2017 Last edited: Mar 27, 2017 BLOCK 1 1) 76 yo man 30mins severe substernal chest pain while arguing with brother. 3 sublingal nitroglycerin no relieve. 5y h/o ischemic heart disease. P110, R20, BP120/80. Cardiac exam normal. EKG ST elevation at leads I, aVl, and V4-V9. What happened during argument with brother? Coronary vasospasm due to alpha 1 stimulation? 2) 40yo G0 women delivered newborn. CVS at 15 wks results male chromosome fetus. Physical exam show female external genitals and absent internal genitals. Mutation prevent reponse to what? Testosterone 3) 13yo girl grew 3in over summer. What accounts for increased Ca absorption? Hormones derived from 7- dehyrocholesterol 4) 56 yo man lethargy. No meds, no postural hypotention, no edema. Na: 125. Others normal. Dx? Small Cell Carcinoma of lungs 5) 15 yo girl received BMT 1 year ago due to AML. Now karyotype 46, XY. Dx? Nonautologous donor 6) 23yo women strenuous exercise. X-sectional area of pulmonary microcirculation? increased, as a result of distention and recruitment of microvessels. 7) 33yo woman had weakness of right lower 2/3 of face. Where is brain lesion? C (precentral gyrus, lower motor cortex) 8) 30 yo man and 24 yo woman genetic counseling. Man’s brother has type 1 oculocutaneous albinism (AR). Single gene disorder 1/40,000 in population. Pedigree shown. What are the odds? 1:600? 9) Chemical disrupts tight junction between cells in the testes. Autoimmune response to products of germ cells entered circulation. What cells disrupted? Sertoli 10) Case control study 11) 25 yo woman w/ AIDS in ICU treated for sepsis by Cryptococcus neoformans. Drug? Amphotericin B 12) 27yo man 4 days of cough producing blood- tinged sputum. BP160/100. Creatine: 4.8, erthyrocyte casts in urine. IgG deposites in IF microscopy. What glomerulus histologic abnormalities? Crescent formation. 13) 48yo man. 3 yrs ago removed right kidney and