Respiratory Flashcards by shir nov

Q

draw lung volumes

A

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Q

lung volume values

A

IRV=3000mL

TV= 500mL

ERV= 1200mL

Residual V= 1200mL

Insiratory capacity= 3500mL

VC= 4700mL

FRC= 2400mL

TLC= 5900mL

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Q

how can we measure functional residual capacity?

A

FRC=ERV+RV

measured with helium dilution and body Platysmography

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Q

what is the anatomical dead space?

A

volume of the conducting system

nose, mouth, trachea, broncchi, bronchioles

about 150mL

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Q

what is physiological dead space?

A

anatomical+functional dead space

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Q

describe the transmural pressure

A

alveolar pressure minus pleural pressure

-2 to -4

force that keeps the lungs open

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Q

A

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