VIP Exclusive
USMLE VIP Comprehensive Practice Exam
USMLE — The USMLE (United States Medical Licensing Examination) is a three-step licensing examination sponsored by the FSMB and NBME; Step 1 is pass/fail (since 2022), Step 2 CK and Step 3 are scored on a 3-digit scale (passing ~214 and ~196 respectively), and all steps use clinical vignette-style multiple-choice questions.
29
Questions
60m
Time Limit
60.00%
To Pass
Question 1 of 29👑 VIP
A 2-year-old boy is brought to the pediatrician for developmental delay, fair skin, blue eyes, and a musty body odor. His parents emigrated recently and newborn screening was not performed. Urine amino acid screen shows markedly elevated phenylalanine and its metabolites. Which enzyme is deficient in this patient?
Questions 2–29 and full explanations are VIP-exclusive.