The fraction of inspired air in mouth-to-mouth respiration is:: (A) 0.16, (B) 0.19, (C) 0.21, (D) 0.26
Answer is A. A i.e. 0.16Mouth - to mouth respiration provides 16% of 02.In mouth- to - mouth respiration the resuscitor takes a deep breath & exhales into the subject's mouth. It provides 16% (15.7%) of 02.(amount of 02 that is present in expired air)