Pft Egans

Front 1

Ability of the lungs to perform depends on four general physiological functions

Back 1

1)Diaphragm and thoracic muscles must be capable of expanding the thorax and lungs to produce a subatmospheric pressure
2)the airways must be unobstructed to allow gas to flow into the lungs and reach the alveoli
3)the cardiovascular system must circulate blood through the lungs
4)oxygen and carbon dioxide must be able to diffuse through the alveolar capillary membrane

Front 2

Three categories of pulmonary functions testing

Back 2

1)lung volumes and capcities
2)flow rates
3)the ability of the lungs to diffuse gases

Front 3

Devices that measure gas volume

Back 3

1)water sealed spirometers
2)below spirometers
3)dry rolling seal spirometers

Front 4

Devices that measure gas flow

Back 4

1)Pneumotachomters
2)turbinometers
3)sonic devices
4)Peak flow meters

Front 5

Lung volumes

Back 5

1)Tidal volume
2)IRV
3)ERV
4)RV

Front 6

Four lung capacities

Back 6

1)TLC
2)IC
3)FRC
4)VC

Front 7

Those lung volumes that can be measured directly

Back 7

1)IC
2)IRV
3)ERV
4)VC

Front 8

Those lung volumes that need to be measured indirectly

Back 8

1)RV
2)FRC
3)TLC

Front 9

VT

Back 9

Measure the volume exhaled during one minute, and divide by the frequency

Front 10

Three methods to measure indirectly TLC and RV

Back 10

1)Helium dilution
2)nitrogen washout
3)body pleysmography

Front 11

Helium dilution technique

Back 11

1)uses a closed, nonrebeathing circuit
2)Patient breathes until an equilibrium of gas is established between the spirometer and the lungs