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PFT Final Exam; Questions and Answers(Grade A+)

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PFT Final Exam; Questions and Answers(Grade A+) You are calibrating a spirometer with a super syringe, and after injecting 3L of air for three consecutive calibrations; the results are 2.8L, 3.0L, and 3.2L. Based on these results, the spirometer is considered: Correct AnswerAccurate Which o...

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  • August 27, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • pft final exam questions and answersgrade a
  • you are calibrating a spirometer with a super syri

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  • Pulmonary Function Tests
  • Pulmonary Function Tests

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PFT Final Exam; Questions and Answers(Grade
A+)
You are calibrating a spirometer with a super syringe, and after injecting 3L of air
for three consecutive calibrations; the results are 2.8L, 3.0L, and 3.2L.

Based on these results, the spirometer is considered: Correct Answer-
Accurate



Which of the following test is used as an indicator of ventilatory inspiratory
muscle strength? Correct Answer-MIP



Individuals with a resting SaO2 less than ____ at sea level are recommended to
have a HAST prior to air travel. Correct Answer-92%



The ventilatory control tests for CO2 and O2 assess the Correct Answer-
central (Co2) and peripheral (O2) chemoreceptors



What is the calculation for Cardiac Output? Correct Answer-HR x SV



What is the calculation for Stroke Volume? Correct Answer-End Systolic
Volume - End Diastolic Volume



What is the Dead Space ratio? Correct Answer-VD/VT

,PFT Final Exam; Questions and Answers(Grade
A+)

What is the calculation for deadspace? Correct Answer-PaCO2-PeCO2 divided
by PaCO2



What is the calculation for Alveolar Ventilation? Correct Answer-
(VCO2/PaCO2) X 0.863



What is the normal minute ventilation? Correct Answer-5-10 L/min



What does the Wright Respirometer give you when referring to PFTs? Correct
Answer-Slow Vital Capacity



What is Respiratory Dead space? Correct Answer-Lung volume that is
ventilating but not perfused by the pulmonary capillary blood flow. Made up by
Anatomical and Alveolar VD. Also known as Physiological



What conditions would give you a quick increase in dead space? Correct
Answer--Pulmonary Emboli

-Pulmonary Hypertension

-Accompanied by drastic SOB

, PFT Final Exam; Questions and Answers(Grade
A+)

What is seen normally during exercise as VT increases and cardiac output
increases promoting recruitment of vessels in the apices of the lungs?
Correct Answer-Decreased Deadspace



What is the normal Alveolar Ventilation? Correct Answer-4-5 L/min



What is the ventilatory response to CO2 regarding ventilatory control tests?
Correct Answer-measurement of the increase or decrease in minute
ventilation caused by breathing various concentrations of CO2 under normoxic
conditions.



When regarding Ventilatory Control tests response to CO2, the normal linear
increases in MV of about Correct Answer-3 L/min/mmHg, there will be a
decrease response in COPD because an increased RAW leads to reduced
ventilatory drive.



What is the ventilatory response to O2 regarding ventilatory control tests?
Correct Answer-measurement of the increase or decrease in MV caused by
breathing various concentrations of O2 under isocapnic conditions.

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