Haemorrhage and shock.
D000769:Anesthesia, Inhalation / Q000379:methods*; D004338:Drug Combinations; D004632:Emergency Medical Services; D006801:Humans; D009609:Nitrous Oxide; D010100:Oxygen
D004338:Drug Combinations; C001147:Entonox; D009609:Nitrous Oxide; D010100:Oxygen