A 43 year old woman with a history of depression, anxiety and severe chronic pain resulting from rheumatoid arthritis was found down in her house, surrounded by empty pill bottles with a suicide note present. Time of ingestion was unknown and was potentially as much as 72 hours prior to discovery. Family members reported that her medicines include acetaminophen/oxycodone, methadone and lorazepam. The patient was intubated due to depressed mental status and poor respiratory drive, and N-acetylcysteine therapy was initiated for her elevated acetaminophen level and evidence of early hepatotoxicity. On hospital day 3, her white blood cell count was noted to be low, with platelets on the lower end of normal. She required initiation of hemodialysis for acute renal failure. This trend continued, and on hospital day 5, her white blood cell count was 0.1 (x103 per microliter) with a platelet count of 9. She developed significant lower GI hemorrhage requiring transfusion of 4 units PRBC and platelets. Family members were asked to provide all the pill bottles found at the scene, and methotrexate was noted to be present in addition to the above listed medications. The patient’s methotrexate level on hospital day 5 was 0.29 micromol and the Poison Control Center was consulted. Continue reading →