WEEK 15 PTA152 Pulmonary Function Testing

A specific amount of air (or lack of air)

• Volume

• Capacities

Match the following

• Exp. Reserve Volume

• Vol of air inhaled or exhaled in a single "normal" breath

• Tidal Volume

• Max Vol of Air that can be exhaled from end expiratory position (BOTTOM OF TIDAL)

• Residual Volume

• Air remaining in lungs after max exhale

• Inspiratory Reserve Volume

• Max. Volume that can be inhaled from end inspiratory level (TOP OF TIDAL VOLUME)

Vol of air inhaled or exhaled in a single "normal" breath

• Tidal Volume

• Exp. Reserve Volume

• Inspiratory Reserve Volume

• Residual Volume

Max Vol of Air that can be exhaled from end expiratory position (bottom of tidal)

• Tidal Volume

• Exp. Reserve Volume

• Inspiratory Reserve Volume

• Residual Volume

Max. Volume that can be inhaled from end inspiratory level (Top of Tidal Volume)

• Tidal Volume

• Exp. Reserve Volume

• Inspiratory Reserve Volume

• Residual Volume

Air remaining in lungs after max exhale

• Tidal Volume

• Exp. Reserve Volume

• Inspiratory Reserve Volume

• Residual Volume

Vol of air in lungs at maximum INFLATION

• Inspiratory reserve volume (IRV)
• Tidal volume (TV)
• Residual volume (RV)
• Total lung capacity (TLC)

Vol that is exhaled at end of 1st second forced expiration

• FVC
• TLC
• FEV1
• PEF

Calculations

FEV1/FVC

​ (a)   = Restrictive Diseases

-Volumes are decreased

0.6 = Obstructive Diseases

-Volumes Normal, flow rates are slower

​ (b)   = Emphysema

• 0.8 to 1.0
• 0.45 to 0.75

Pulmonary Function Testing

b

c

d

e

a

Total lung capacity

Inspiratory reserve volume (IRV)

Residual Volume (RV)

Tidal Volume (TV)

Expiratory reserve volume (ERV)