Neuroanatomy USMLE Step 1 Practice Questions
50 board-style USMLE Step 1 questions in Anatomy. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · easy25. A 72-year-old man with a history of poorly controlled hypertension presents to the emergency department with acute-onset right facial droop, right arm weakness, and slurred spee…
- USMLE Step 1 · hard26. A 55-year-old man with hypertension presents with acute onset loss of pain and temperature sensation over the right side of his face with preserved touch sensation, and dissocia…
- USMLE Step 1 · medium27. A 64-year-old hypertensive diabetic man presents with acute onset diplopia, right ptosis, and right medial rectus weakness. Pupillary responses remain intact. Vital signs show B…
- USMLE Step 1 · medium28. A 56-year-old woman with metastatic breast cancer presents with progressive bilateral leg weakness and hyperreflexia. Vital signs show BP 128/82, HR 88, RR 16, temp 37°C, SpO2 9…
- USMLE Step 1 · hard29. A 71-year-old man with hypertension presents with sudden-onset vertigo and falls to the left. Vital signs show BP 168/94 mmHg, HR 78/min, RR 16/min, SpO2 98%. Examination reveal…
- USMLE Step 1 · hard30. A 34-year-old man presents with a penetrating left chest wound. Vital signs show BP 128/82, HR 92, RR 18, temp 37.2°C, SpO2 98%. He develops left-sided Horner syndrome and left…
- USMLE Step 1 · hard31. A 52-year-old man with hypertension presents 2 hours after acute onset of right facial weakness and left-sided hemiparesis. Vital signs: BP 168/94 mmHg, HR 88, RR 16, temp 37°C,…
- USMLE Step 1 · hard32. A 48-year-old woman presents with sudden-onset bilateral leg weakness and loss of pain and temperature sensation in both legs and lower trunk. Vital signs show BP 128/82, HR 92,…
- USMLE Step 1 · medium33. A 35-year-old man sustains a stab wound to the left side of his neck. On examination, he has right-sided arm and leg weakness (4/5), preserved pinprick sensation bilaterally, bu…
- USMLE Step 1 · hard34. A 38-year-old man presents with acute inability to look to the right, right facial droop, and right arm and leg weakness. Vital signs show BP 158/92 mmHg, HR 88, RR 16, temperat…
- USMLE Step 1 · medium35. A 63-year-old man with a large pleural effusion (BP 138/82, HR 92, RR 22, SpO2 92% on room air) and chest imaging showing fluid layering posteriorly undergoes thoracentesis. The…
- USMLE Step 1 · medium36. A 45-year-old garbage collector has severe neck pain and weakness in his left upper extremity. He has gotten no relief from over-the-counter medications. He denies any history o…
- USMLE Step 1 · medium37. A 22-year-old male football player sustains an anterior shoulder dislocation during a tackle. On examination, blood pressure is 128/82 mmHg, heart rate 96/min, and temperature 3…
- USMLE Step 1 · medium38. During an interview, a 34-year-old psychiatric patient suddenly becomes aggressive. The patient is quickly taken to a quiet, private room and given an intramuscular injection of…
- USMLE Step 1 · medium39. A 22-year-old male football player presents to the team physician with a shoulder injury sustained during tackle. Vital signs: BP 128/82, HR 98, RR 16, Temp 37.2°C, SpO2 98%. Pr…
- USMLE Step 1 · medium40. A 32-year-old male complains of progressive, severe, generalized headaches that began 3 months ago, are worse in the mornings, and lately have been accompanied by projectile vom…
- USMLE Step 1 · medium41. A 52-year-old woman presents with severe pain beneath her left index fingernail. Vital signs show BP 128/82 mmHg, HR 88/min, RR 16/min, temperature 37.2°C, and SpO2 98% on room…
- USMLE Step 1 · medium42. A patient's left eye is deviating medially, and attempts to look to the left go no farther than the midline. The patient cannot wrinkle his forehead or smile on the left side. H…
- USMLE Step 1 · medium43. A 49-year-old female comes to the emergency department because of right upper quadrant pain, nausea, vomiting, and fever. She also complains of pain in her right shoulder. A rig…
- USMLE Step 1 · medium44. A patient presents to the physician complaining of 'something wrong with her foot' that causes her to trip and fall. Physical examination reveals an inability to dorsiflex (exte…
- USMLE Step 1 · medium45. MRI reveals that a 62-year-old male has a brain tumor growing in his interhemispheric fissure at the level of the central sulcus. The tumor produces neurologic dysfunction of th…
- USMLE Step 1 · medium46. A 40-year-old male presents with acute loss of sensation over the right scrotum and medial right thigh following a motorcycle accident. Vital signs show BP 128/82 mmHg, HR 92/mi…
- USMLE Step 1 · medium47. A 68-year-old man presents with sudden onset of violent, involuntary flinging movements of the left upper limb that are jerky and irregular. Vital signs show BP 158/92 mmHg, HR…
- USMLE Step 1 · medium48. A 47-year-old male presents with progressive unsteady, broad-based gait and slow, slurred speech. Vital signs: BP 138/82 mmHg, HR 88/min, RR 16/min, Temp 37°C. Neurologic examin…