McClure 1994.

Methods	Randomised cross‐over study, Study conducted in the United Kingdom
Participants	11 Children (aged 5‐18 years) with end stage chronic renal failure
Interventions	Two doses of salbutamol (separated by two hours) given intravenously (4 μg/kg) and on a separate date, of salbutamol administered by nebuliser (2.5 mg if the child weighed below 25 kg, 5 mg if above) was observed
Outcomes	Plasma potassium
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	D ‐ Not used