Normal vital capacity in an adult is: (A) 1200 ml, (B) 2500 ml, (C) 3000 ml, (D) 4700 ml
Answer is D. Vital capacity Amount of air that can be exhaled with maximum effo after maximum inspiration (ERV + TV + IRV); used to assess strength of thoracic muscles as well as pulmonary function. Around 4700mlRef: Ganong review of medical physiology 23rd edition Page no: 593