CPFT Exam Review Questions and Answers
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Practice questions for this set
Learn 1 /7 Study with Learn
Factors effecting diffusion:
HB
HCT
DLCO decreased
increased CO2
DLCO increase
COHB
decreased DLCO
increased pulmonary capillary blood volume
increased DLCO
Choose an answer
1 Pneumotach- flow 2 Inductive Plethysmograph
, 3 DLCO 4 Ultrasonic- flow
Don't know?
Terms in this set (37)
Measures flow and converts it into volume. Turbine
Pneumotach- flow (Wrights)- uses vanes with gears, breaks easily, not for
peak flow.
Pressure differential. Flow goes in past resistance
Fleish- flow element. Pressure drop translates to flow. Kinked
garden hose effect.
Calculates flow by comparing temperature differential
Thermal element- flow
across two sensors.
Pitot tube- flow Flow calculated across several tube sensors.
Vortex shedding, ultrasonic screen vibrates flow,
Ultrasonic- flow
creating vortices. Machine counts vortices.
Volume displacement Collins water seal
water seal- volume
3 L cal syringe- volume 2.9-3.10 L. Acceptable accuracy
Dry rolling seal- volume volume spirometry
Wedge bellows- volume volume spirometry
Sine wave rotary pump- machine simulates varied flow and volume patterns.
volume Body Box calibration
measures Vtg, which is same as FRC.
More accurate for COPD.
Body Box
Calibration: mouth pressure=mercury, water.
Box pressure= sine wave rotary pump.
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Factors effecting diffusion:
HB
HCT
DLCO decreased
increased CO2
DLCO increase
COHB
decreased DLCO
increased pulmonary capillary blood volume
increased DLCO
Choose an answer
1 Pneumotach- flow 2 Inductive Plethysmograph
, 3 DLCO 4 Ultrasonic- flow
Don't know?
Terms in this set (37)
Measures flow and converts it into volume. Turbine
Pneumotach- flow (Wrights)- uses vanes with gears, breaks easily, not for
peak flow.
Pressure differential. Flow goes in past resistance
Fleish- flow element. Pressure drop translates to flow. Kinked
garden hose effect.
Calculates flow by comparing temperature differential
Thermal element- flow
across two sensors.
Pitot tube- flow Flow calculated across several tube sensors.
Vortex shedding, ultrasonic screen vibrates flow,
Ultrasonic- flow
creating vortices. Machine counts vortices.
Volume displacement Collins water seal
water seal- volume
3 L cal syringe- volume 2.9-3.10 L. Acceptable accuracy
Dry rolling seal- volume volume spirometry
Wedge bellows- volume volume spirometry
Sine wave rotary pump- machine simulates varied flow and volume patterns.
volume Body Box calibration
measures Vtg, which is same as FRC.
More accurate for COPD.
Body Box
Calibration: mouth pressure=mercury, water.
Box pressure= sine wave rotary pump.
