QUESTIONS ANSWERS GRADED A+
◉ Normal tidal volume of adult. Answer: 500 mL
◉ Inspiratory Reserve Volume (IRV). Answer: Amount of air that can
be forcefully inhaled after a normal tidal volume inhalation
◉ Expiratory Reserve Volume (ERV). Answer: Amount of air that can
be forcefully exhaled after a normal tidal volume exhalation
◉ Residual Volume (RV). Answer: Amount of air remaining in the
lungs after a forced exhalation. Cannot be exhaled.
◉ Vital Capacity (VC). Answer: Max air exhaled after max inhalation.
◉ Inspiratory Capacity (IC). Answer: the volume of air inhaled after
a normal exhale
◉ Functional Residual Capacity (FRC). Answer: volume of air
remaining in the lungs after a normal tidal volume expiration
, ◉ Total Lung Capacity (TLC). Answer: the volume of air in the lungs
after a maximal inhalation
◉ average IRV for a male. Answer: 3100 ml
◉ Average IRV for females. Answer: 1900
◉ average ERV for males. Answer: 1200
◉ average ERV for females. Answer: 800
◉ Average RV for males. Answer: 1200 mL
◉ Average RV for females. Answer: 1000
◉ Indirect measurements of Residual Volume and Capacities
containing residual volume. Answer: -Closed circuit helium dilution
-Open circuit nitrogen washout
-Body plethysmography (body box)
◉ Forced Vital Capacity (FVC). Answer: Maximum volume of gas that
can be exhaled as forcefully and rapidly as possible after maximal
inspiration.