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Figure 31-1

The Rumack-Matthew Nomogram is Designed to Help Determine the Risk of Hepatotoxicity Based on Hours Since Ingestion (x-Axis) Versus the Serum Acetaminophen Level in G/Ml (Y-Axis). Any Acetaminophen Level Greater Than the “150-Line” at Any Time Since Ingestion Should Be Treated with Nac.

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The Rumack-Matthew nomogram is designed to help determine the risk of hepatotoxicity based on hours since ingestion (x-axis) versus the serum acetaminophen level in μg/mL (y-axis). Any acetaminophen level greater than the “150-line” at any time since ingestion should be treated with NAC.