A patient is brought to the Emergency Department after what…

A patient is brought to the Emergency Department after what appears to be a suicide attempt using multiple substances.  An empty bottle of acetaminophen was found in the trash can.  Based upon phone calls from the patient to others, the blood sample drawn in the Emergency Department is considered to have been drawn 6 hours after the likely ingestion.  The acetaminophen concentration is reported back as 150 mcg/mL.  Will you recommend that the N-acetyl-cysteine antidote be administered?