Metabolism USMLE Step 1 Practice Questions
110 board-style USMLE Step 1 questions in Biochemistry. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · medium97. Liver cells in culture were kept at 0°C (32.0°F) and treated with trypsin to digest the receptors on the cell surface. The temperature was then raised to 37.0°C (98.6°F), and ra…
- USMLE Step 1 · medium98. A 2-year-old male presents with developmental delay, hepatosplenomegaly, and progressive neurologic decline. Vital signs show HR 110 bpm, RR 24/min, BP 95/60 mmHg, and temperatu…
- USMLE Step 1 · medium99. A 30-year-old male has been fasting for religious reasons for several days. His blood glucose level is now about 60% of its normal value, but he does not feel lightheaded becaus…
- USMLE Step 1 · medium100. A 58-year-old man with type 2 diabetes presents with anxiety, diaphoresis, and intense hunger 2 hours after taking glyburide. Vital signs show BP 118/76, HR 108, RR 16, temp 37.…
- USMLE Step 1 · medium101. A 2-week-old male presents with projectile vomiting after each milk-based formula feeding and failure to gain weight. Vital signs show HR 128/min, RR 32/min, temperature 37.2°C.…
- USMLE Step 1 · medium102. A previously normal child begins deteriorating developmentally at about 6 months of age. She is seen by an ophthalmologist because she no longer responds to visual stimuli. Opht…
- USMLE Step 1 · medium103. A 36-year-old Greek male with viral pneumonia presents with acute hemolysis. Vital signs show BP 128/82 mmHg, HR 102/min, RR 22/min, temperature 38.2°C, SpO2 94% on room air. La…
- USMLE Step 1 · medium104. Several members of a family have an autosomal recessive disease characterized by intellectual deterioration, weakness, ataxia, seizures, and death at a young age. Special studie…
- USMLE Step 1 · medium105. A 2-day-old newborn presents with severe metabolic acidosis (pH 7.18), vomiting, hypotonia, and altered mental status. Vital signs show tachycardia (HR 145/min), tachypnea (RR 3…
- USMLE Step 1 · medium106. A 34-year-old female presents to her physician complaining of oral ulcers. A careful history reveals that she is a strict vegetarian and does not eat meat, fish, poultry, eggs,…
- USMLE Step 1 · medium107. A 57-year-old male with poorly controlled type 1 diabetes presents with progressive vision loss. Vitals: BP 148/92 mmHg, HR 88/min, RR 16/min, Temp 37.2°C. Ophthalmoscopic exami…
- USMLE Step 1 · medium108. An Olympic runner participates in a 100-meter race. During this race, it is estimated that only ½ L oxygen will be consumed by the runner. However, more than 10 L oxygen would b…
- USMLE Step 1 · medium109. An X-linked genetic disease affects a cation-transporting P-type ATPase, resulting in accumulation of copper in the intestinal epithelium because of failure to transport it norm…
- USMLE Step 1 · medium110. A 34-year-old man with type 2 diabetes presents with fatigue and dyspnea on exertion. Vital signs show BP 142/88 mmHg, HR 98 bpm, RR 20/min, temp 37.2°C, SpO2 98% on room air. S…