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UTD says NAC doesn’t provide additional benifit if started within 4 hours.
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UTD also says restricting activated charcoal to 4 hours may restrict its benefits.
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Leave the * on the first bullet so it matches text
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Done
UW says to give NAC for (a) evidence of liver injury (eg, elevated ALT/AST, RUQ tenderness) or (b) >=8 hours since ingestion or acetaminophen level not available until >=8 hours post-ingestion.
Feel like we could include some of these details for completeness