The spirometer can estimate all the following except: (A) Total lung capacity, (B) Forced expiratory volume in 1 second, (C) Peak expiratory flow, (D) Vital capacity
Answer is A. The total lung capacity (TLC), about 6,000 mL, is the maximum amount of air that can fill the lungs (TLC = TV + IRV + ERV + RV Ref: guyton and hall textbook of medical physiology 12 edition page number:326,327,328