Medical Emergencies · single question

A patient taking allopurinol for gout arrives holding his avulsed tooth #8 after a fight. What would most likely be found in his toe joint?

  1. Uric acid
  2. Calcium pyrophosphate
Show answer and explanation

Correct answer: A. Uric acid

  • A. Correct. Gout is caused by monosodium URATE (uric acid) crystal deposition, classically in the first metatarsophalangeal joint (podagra); allopurinol lowers uric acid production.
  • B. Calcium pyrophosphate crystals cause pseudogout (CPPD), a different crystal arthropathy — not what allopurinol treats.

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