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 air. Physical examination reveals a 0.2 cm subungual nodule with tenderness to palpation; no erythema or drainage noted. X-ray shows no bony involvement. She denies recent trauma or systemic symptoms. Local anesthetic block to a branch of which nerve would most effectively provide anesthesia for surgical excision?

  1. A)MedianGABARITO
  2. B)Musculocutaneous
  3. C)Radial
  4. D)Ulnar
  5. E)Axillary

Explicação

The correct answer is B. Source: Kaplan USMLE Step 1 QBank — Anatomy Test 2. Ver explicação completa e trilha adaptativa →

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