Question

A) TLC = 6500 VC = 5000 Find RV.

TLC = 6500   IC = 3500 Find FRC.

TLC = 6500   RV = 1200 Find VC.

IC = 3500 TV = 600 Find IRV.

FRC = 2300 RV = 1200 Find ERV.

B) The total volume of air in Jeffrey’s lungs is 5800 mL. If his IC is 3200 and his RV is 1000, calculate his ERV and FRC.

TLC = 4200, VC = 3200, IC = 2000 Calculate the FRC and RV?

VC = 3200, IC = 2200, ERV = 1000, RV = 1000 Calculate the TLC.

The total volume of air Sally can inhale after a quiet exhalation is 3400 mL. When Sally is sitting still she inhales 400 mL and there is 2200 mL left in her lungs. Calculate or figure out from the information given in the question the following values TV, TLC, IC, FRC, IRV.

When at rest Jeremy inspires and expires 600 mL. While his lungs can hold 7000 mL of air only 5500 mL can move in and out, if he really, really tries. Normally, there is 3400 mL of air left in his lungs after a quiet expiration. Calculate or figure out TV, ERV, TLC, IC, FRC, IRV, RV.

Answer 1

Tidal volume is the volume of air inspired or expired with each breath during normal respiration.

inspiratory reserve volume is the extra volume of air that can be inhaled by a maximum inspiratory effort over and beyond the normal tidal volume.

Expiratory reserve volume is the extra volume of air that can be exhaled by the maximum forceful expiration over and beyond normal tidal volume.

Residual volume is the volume of the air that still remains in the lungs after the most forceful expiration.

Inspiratory capacity is the maximum volume of air that can be inspired after normal tidal expiration. It is equal to TV+ IRV.

Expiratory capacity is the maximum volume of air that can be expired after normal tidal inspiration. It is equal to TV+ERV.

Functional residual capacity is the volume of the air remaining in the lungs after normal tidal expiration. It is equal to ERV+ RV.

Vital capacity is the maximum amount of fair that a person can expel from the lungs after the deepest possible inspiration. It is equal to TV+IRV+ERV.

Total lung capacity is the volume of air present in the lungs after the maximal inspiration. It includes TV+IRV+ERV+RV or VC+RV.

A)

1.TLC= VC+RV , RV= TLC-VC

6500-5000= 1500 mL.

2. TLC= TV+ IRV + ERV+ RV

IC= TV+ IRV,

TLC= IC+ ERV + RV

FRC= ERV+ RV.

therefore, TLC= IC+ FRC,

FRC= TLC-IC= 6500-3500= 3000 mL.

3. IC= TV+ IRV, IRV= IC-TV

= 3500-600= 2900 mL.

4. FRC= ERV+ RV

ERV= FRC- RV= 2300-1200= 1100 mL.

2) As stated above, TLC= IC+ FRC , FRC= TLC-IC

FRC= 5800-3200 = 2600 mL.

FRC= ERV+ RV. ERV= FRC- RV

ERV= 2600-1000= 1600 mL.

As stated above, FRC= TLC- IC= 4200-2000= 2200 mL.

TLC= VC+ RV,. RV= TLC- VC= 4200-3200. = 1000ml.

TLC= VC+ RV= 3200 + 1000= 4200 ml.

After a normal exhalation, the air that can be inspired is called inspiratory capacity. Therefore, it is 3400 ml.

Inhalation during resting conditions is called tidal volume. It is equal to 400 ml.

The volume of air left in the lungs after normal expiration is called functional residual capacity. It is equal to 2200 ml.

IC= TV+ IRV. IRV= IC-TV= 3400-400= 3000 mL.

TLC= IC+ FRC, = 3400 + 2200 = 5600 mL.

The volume of air inspired or expired at rest is known as tidal volume. It is equal to 600 ml.

The maximum amount of air the lungs can hold is called the total lung capacity. It is equal to 7000 ml.

The maximum amount of air that can be exhaled or inhaled during respiration is called vital capacity which is equal to 5500 ml.

the volume of air left in the lungs after in normal quiet expiration is known as functional residual capacity which is equal to 3400 ml.

RV= TLC-VC= 7000-5500= 1500 ml.

FRC= ERV+ RV,. ERV= FRC-RV= 3400-1500= 1900 ml.

IRV= VC-TV-ERV= 5500-600-1900 mL= 3000 mL.

IC= IRV+TV= 3000+600= 3600 mL.