What is phase 2 of acetaminophen toxicity/poisoning?

Updated: Jan 17, 2020
  • Author: Susan E Farrell, MD; Chief Editor: Michael A Miller, MD  more...
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In phase 2 (18-72 h after ingestion), patients generally develop right upper quadrant abdominal pain, anorexia, nausea, and vomiting. Right upper quadrant tenderness may be present. Tachycardia and hypotension may indicate volume losses. Some patients may report decreased urine output (oliguria).

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