Chapter 22 - Spirometery Flashcards

1
Q

instrument for measuring respiratory volumes and capacities

A

spirometer

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2
Q

curve up

A

inspire

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3
Q

curve down

A

expire

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4
Q

amount of air inhaled or exhaled with each breath under resting conditions

A

tidal volume (tv)

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5
Q

amount of air that can be forcefully inhaled after normal tidal volume inspiration

A

inspiratory reserve volume (irv)

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6
Q

amount of air that can be forcefully exhaled after normal tidal volume expiration

A

expiratory reserve volume (erv)

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7
Q

amount of air remaining in the lungs after a forced expiration

A

residual volume (rv)

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8
Q

inspiratory capacity (IC)

A

IC = TV + IRV

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9
Q

vital capacity (VC)

A

VC = TV + IRV + ERV

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10
Q

forced vital capacity

A

gas expelled forcefully and rapidly

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11
Q

vital capacity

A

gas expelled forcefully and slowly

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12
Q

total lung capacity (TLC)

A

TLC = TV + IRV + ERV + RV

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13
Q

seconds/breath

A

breath period

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14
Q

breath rate

A

60/BP

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15
Q

what determines the three-month average blood glucose level?

A

glycated hemoglobin (HbA1c)

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16
Q

blood flow reaching alveoli

A

perfusion

17
Q

amount of gas reaching alveoli

A

ventilation

18
Q

what is matched (coupled) for efficient gas exchange

A

ventilation and perfusion

19
Q

what happens when alveolar o2 is high?

A

pulmonary arterioles dilate

20
Q

what happens when alveolar o2 is low?

A

pulmonary arterioles constrict