RESP204- PFT POWER POINT 1 EXAM /COMPLETE ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+
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Course
RESP204- PFT POWER POINT 1
Institution
RESP204- PFT POWER POINT 1
RESP204- PFT POWER POINT 1 EXAM /COMPLETE
ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
RESP204- PFT POWER POINT 1 EXAM /COMPLETE
ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
RESP204- PFT POWER POINT 1 EXAM /COMPLETE ...
RESP204- PFT POWER POINT 1 EXAM 2024-2025 /COMPLETE
ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
The goals of PFT's are to detect what 6 things? detect airflow limitation,
restriction, obstruction, impaired gas exchange, anatomical
abnormalities, respiratory muscle weakness What is the equation for
Boyles Law? p1 x V1 = p2 x V2
The Boyles Law equation will help us find what lung capacity? functional
residual capacity
If temperature is held constant, the volume of gas in a container varies
inversely with changes in pressure (volume increased, pressure is deceased) -
is which law?
Boyles law
What are the four ways of Measuring Residual Volume (RV)
Multi breath N2 washout, Single breath N2 washout, Helium Dilution, Body
plethysmography
What % of Nitrogen is in the air that we breath in?
78%
During Multi break Nitrogen washout why does the patient need to breathe in
100% FiO2?
to forecully push nitrogen out due to having a higher pressure
What gas law is " decreased Volume = increased Pressure"
Boyles law
What gas law states that 'increase temperature = increase volume"
Charles Law
, What gas law states that "P1 + P2 + P3 = Total Pressure"
Daltons Law
What are the 6 different types of PFT equipment ?
Peak flow meter, pressure manometer, pneumotachometers, spirometers, 3 L
calibration super syringe,
Plethysmography/ body box A FRC >3L indicates the presence of what?
obstructive disease
N2% change of more than 3% indicates what?
unequal distribution of ventilation
The volume in the lungs at maximal inflation, the sum of VC and RV Total
lung capacity (TLC)
the volume of air remaining in the lungs after a maximal exhalation Residual
Volume (RV)
the maximum volume of air inspired after a NORMAL expiration , sum of
IRV and Vt
Inspiratory capacity (IC)
the volume of air breathed out after the deepest inhalation, the sum of IRV,
Vt, & ERV
Vital capacity (VC)
the volume in the lungs at end-expiration , the sum of ERV and RV
Functional Residual Capacity (FRC)
During a Multi-Breath Nitrogen Washout the RT needs to find the FEN2.
How is this done?
subtract the sum of exhaled CO2% and exhaled O2% from 100%
Multi-Breath Washout : Once the RT finds the FEN2 , what is the next step ?
multiply the FeN2 by the Vt for all breaths in the trial How would one obtain
the RV ?
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