• Ed Oakley.
• Department of Emergency Medicine, Monash Medical Centre, 246 Clayton Road, Clayton, VIC 3168, Australia. ed.oakley@southernhealth.org.au
• Emerg Med Australas. 2011 Feb 1;23(1):63-7.

IntroductionN-acetylcysteine (NAC) administration is recommended to all patients judged to be at risk of developing hepatotoxicity following paracetamol overdose. However, it has been shown that standard i.v. dosing can cause symptomatic hyponatraemia in children. We describe a case series using 0.45% NaCl plus 5% dextrose for infusing i.v. NAC in children with paracetamol poisoning.Case SeriesA retrospective review of medical records of patients treated with NAC using 0.45% saline plus 5% dextrose, and a novel two-stage dosing regimen between January 2003 and July 2006 were undertaken.ResultsA total of 40 patients (20 male and 20 female) who received NAC in 0.45% sodium chloride (NaCl) with 5% dextrose were identified. Mean age was 9 years 6 months (95% CI 4 years 4 months to 15 years 1 month) and the range 3 months to 17 years. All patients had NAC infused in a two-stage infusion regimen (150 mg/kg bolus over 1 h followed by a continuous infusion of 10 mg/kg/h for 20 h). The serum sodium was measured in all 40 patients with a mean of 140 (range of 133 to 152 mmol/L). Repeat sodium was measured in 35 cases, with a mean of 140 mmol/L (range from 134 to 149 mmol/L).ConclusionThese findings support the use of saline-containing solutions to administer NAC as an alternative to 5% dextrose, and suggest that a two-stage infusion regimen should be further investigated with prospective studies.© 2011 The Authors. EMA © 2011 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

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