pft 2

what does a mecury barometer measure

barometeric pressure
when using a mercuring barometer, the pressure is measured from the ___ of the meniscus

top
if the water is in the barometer instead of mercury, where is the measurement assessed

bottom of the meniscus
list examples of equipment that utilize an aneroid barometer
- bp cuffs
- in ventilators to record pressure
what is maximum inspiratory pressure used to assess

rediness to wean in ventilator pt
what is the minimum acceptable value

< -20 cmh20 pressure indicates ins. muscle weakness
what does a maximum exp pressure measurement evaluate

pt ability to maintain an airway and clear secretions (cough affectively)
what is the minimum acceptable value for MEP

< +40 cmh20 pressure indicates poor ability to clear secretions
how should the RT instruct a pt to perform a VC maneuver

max ins followed by a max. exh W/OUT force
the VT maneuver will provide the important ____ used to identify restrictive disease

volumes
what five volumes are measured when a VC is recorded
- vt- normal breathing
- irv
- erv
- ic (irv +vt)
- vc (irv+vt+erv)
a decreased ___ is the best indicator of ___ lung disease
- vc
- restrictive

Author

Anonymous

80593

Card Set

pft 2

Description

pft 2

Updated

2011-04-19T07:13:22Z

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