Methods	RCT.
Participants	Pregnant women presenting for emergency CS for acute fetal distress, pre-eclampsia and failed trial of labour N = 60.
Interventions	Oral effervescent ranitidine 150 mg. No treatment.
Outcomes	Gastric pH- measured with pH meter immediately postintubation and pre extubation
Notes
Risk of bias
Item	Authors’ judgement	Description
Adequate sequence generation?	Unclear	Not described.
Allocation concealment?	Unclear	Not described.
Blinding? All outcomes	No	No reports of blinding.
Incomplete outcome data addressed? All outcomes	Yes	No loss of participants reported.
Free of selective reporting?	Unclear	Due to translation of paper and we did not assess the trial protocol
Free of other bias?	Yes	No evidence of other bias.

CS: caesarean section

hr: hour

GA: gestational age

IM: intramuscular

IV: intravenous

ITT: intention to treat

M: molar

min: minute(s)

po: by mouth

pre-op: pre-operative

RCT: randomised controlled trial

SD: standard deviation