Physiology Flashcards by Morgan Muncey-Buckley

Q

FRC decreased by

A

Obesity

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Q

FRC increased by

A

COPD

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Q

FRC =

A

ERV+RV

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Q

FRC is % of total lung volume

A

40

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Q

TLC =

A

VC+RV

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Q

Average value of TLC

A

5.7L

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Q

FVC can be measured by

A

Spirometry

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Q

Ratio in obstructive

A

Decreased

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Q

Ratio in restrictive

A

Normal

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Q

RV vs FRC

A

Minimum after maximal expiration
FRC is air after TV

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Q

FEV after treatment goes up by

A

10-15%

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Q

FEV1 for COPD mild moderate severe very severe

A

> 80, 50-80, 30-50, <30

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Q

Low O2 causes pulmonary

A

VASOCONSTRICTION

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Q

B1 receptors are where?

A

Heart, kidney, lungs

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Q

Which B receptor in lung?

A

B2

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Q

Hypercapnia stimulates

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A

Central chemoreceptors

Q

Hypercapnia is at

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A

Night

Q

what can decrease pulmonary compliance

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A

Pulmonary fibrosis, oedema, pneumonia, collapse