Paediatricscommon
A 2-year-old boy weighing 12 kg has had two days of vomiting and profuse watery diarrhoea. He is now floppy and barely responsive, with cool mottled legs, a capillary refill time of 5 seconds, a heart rate of 175/min, a thready pulse and a blood pressure of 72/40 mmHg. His blood glucose is 4.1 mmol/L. Intravenous access has been obtained.
Which one of the following is the most appropriate initial intravenous fluid?