The patient had of overdose for four hours. The patient was a 20-year-old woman who presented to the Emergency Department four hours prior with complaints of dizziness, headache, weakness, drowsiness and dull left upper abdominal pain following a self-administered overdose of valproate and alprazolam, which was swallowed in unspecified doses. She had a three-year history of mood disorders and had been taking medication for a long time. The patient denied any family history. On arrival at the hospital, she was alert and depressed. Her pupils were equal and round, approximately 3 mm in diameter, and reactive to light. The patient’s vital signs were within normal limits. Biochemistry, coagulation and blood count tests were performed. When her condition became critical, rapid bedside blood gas analysis was performed; pH 7.476, Pco2 33.5 mmHg, Po2 103 mmHg, BE 2 mmol/L, Hco3 24.7 mmmo1/L, S02 98%, potassium chloride 3.5/L, hemoglobin 139 g/L, and blood glucose 4.8 mmol/L. The patient was not imaged.