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RT203 PFT exam2 study guide questions With Latest Solutions $9.49   Add to cart

Exam (elaborations)

RT203 PFT exam2 study guide questions With Latest Solutions

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what is the difference between lung volumes and lung capacities? - Correct Answer volumes: measure for obstructive disease capacities: measure for restrictive disease tidal volume formula - Correct Answer VT= IC-IRV VT= VC-(IRV+ERV) VT= TLC-(IRV+ERV+RV). alveolar volume formula - Cor...

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  • August 28, 2024
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  • 2024/2025
  • Exam (elaborations)
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RT203 PFT exam2 study guide questions
With Latest Solutions
what is the difference between lung volumes and lung capacities? - Correct Answer
volumes: measure for obstructive disease
capacities: measure for restrictive disease

tidal volume formula - Correct Answer VT= IC-IRV
VT= VC-(IRV+ERV)
VT= TLC-(IRV+ERV+RV).

alveolar volume formula - Correct Answer VA= VE- VD
(VE= pulm. ventilation)
VD= dead space vetilation

dead space formula - Correct Answer VD/VT = (Paco2 - Peco2)/ Paco2

what is methacholine bronchoprovocation testing used for? - Correct Answer A
bronchial challenge test is a medical test used to assist in the diagnosis of asthma. The
patient breathes in nebulized methacholine or histamine.

tidal volume (Vt) - Correct Answer volume of air inhaled or exhaled during each normal
breath (500ml)

inspiratory reserve volume (IRV) - Correct Answer maximal volume of air that can be
inhaled OVER and ABOVE the inspired tidal volume (3100ml)

expiratory reserve volume (ERV) - Correct Answer maximal volume of air that can be
exhaled after exhaling a normal tidal breath (1200ml)

residual volume (RV) - Correct Answer volume of air remaining in lungs after maximal
exhalation (1200ml)

total lung capacity (TLC) - Correct Answer maximal volume of air in the lings at the end
of a maximal inhalation (RV + Vt + ERV + RV)
(6000ml)

functional residual capacity (FRC) - Correct Answer volume of air present in the lung at
end-expiration during tidal breath (RV + ERV)
(2400ml)

inspiratory capacity (IC) - Correct Answer max volume of air that can be inhaled from
the resting end-expiratory level (IRV + Vt)
(3600ml)

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