Indications for endotracheal intubation are
A
Cardiac arrest
B
Major surgery with general anesthesia
C
PaO2 <50 mm of Hg with 50% Fi02
D
Patient with Glasgow coma scale-15
E
Vital capacity > 15 ml/kg
Correct Answer: Cardiac arrest, Major surgery with general anesthesia, PaO2 <50 mm of Hg with 50% Fi02