NBME CBSE ACTUAL TEST
QUESTIONS AND ANSWERS (Quiz
bank with all the correct answers)
(usmle step 1) Medical examination new
Update 2022/2023
62 year
... [Show More] old woman - osteoporosis - a bisphosphonate is prescribed. The
expected beneficial effect of the drug is due to which of the following? -Answer=
Decreased Osteoclast Activity
Cohot Study of elderly women - relative risk ratio for hip fractures among those
who exercise regularly is 1.2 (95% confidence interval of 1.1 to 1.8). Which of the
following is the conclusion about the effect of exercise on the risk of hip
fracture? -Answer= Statistically Significant Overall Increase Risk
52 year old man goes to ER with chest pain radiating to his jaw while
shoveling snow. Pulse is80/min and blood pressure is 130/70. The most
immediate treatment mechanism of action? - Answer= Increased nitric
oxide concentration
24 year old woman - spilled hot grease on her left leg while working at a fastfood restaurant. Exam of leg shows 7cm pink, soft, granular, edematous wound.
The formation of this tissue was most likely caused by increased activity of
which? -Answer= a. Vascular Endothelial Growth Factor VEGF - stimulates
angiogenesiss.
TYPE III Collagen = Blood Vessels - early wound repair
27 year old man- MVC - skull x-ray shows a linear, nondepressed basal skull
fracture - increased serum osm and decreased urin osm. Following
desmopressin urine osm increases. Desmopressin's effect is due to the activation
of which of the following? -Answer= a. Adenylyl Cyclase
Adenylate Cyclase - ATP - CAMP --
PROTEKINASEA -- Cav2
A 10 month old boy - 4 day history of fever and cough. He attends day care
center. Chest exam shows intercostal retractions along with bilateral, diffuse
wheezes and expiratory rhonchi. The infectious agent most likely has which of the
following properties? -Answer= Mediation of Cell Entry via a fusion protein
A 17 year old girl in ED - 15 minutes after being stung by a bee. Mild light
headedness but no difficulty swallowing- Bilateral wheezing - Which is most
appropriate pharmacotherapy for this patient? -Answer= B2- Agonist
14 year old boy - 2 day history of sore throat and fever that peaks in late
afternoon. 1 week of fatigue. He recentaly had sex with one partner. Physical
exam show cervical lymphadenopathy and pharyngeal erythema with a creamy
exudate. DX? -Answer= Infectious Mononucleosis
57 year old man - radiation therapy for squamous cell carcinoma of the lung.
Despite therapy, tumor increases in size and he dies 6 months later. The
progressive tumor growth is due to a defectin cell cycle arrest in which of the
following phases of cell cycle? -Answer= G1
28 year old - lived in sub-Saharan Africa - until he came to the US. Temp of 100.4
- imaging shows bilateral hydroureter and hydronephrosis. Biopsy shows marked
fibrosis and scattered granulomas. DX? -Answer= Schistosomiasis
A couple with a family history of a-thalassemia. Woman has one gene deletion
and man has two gene deletion. If the two gene is trans - what percentage of
offspring will have a two gene deletion?
-Answer= 50% [Show Less]