Respiratory Volumes and Capacities

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Last updated 1:11 AM on 10/14/26
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12 Terms

1
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What does a spirometer measure?

How well the lungs work in volumes, capacities, and rates

2
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Obstructive pulmonary disease cause lungs to…

Hyperinflate

3
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What values increase due to obstructive pulmonary diseases?

  • TLC

  • FRC

  • RV


4
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Restrictive pulmonary diseases causes lungs to…

Have limited expansion

5
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What values decrease due to restrictive pulmonary diseases?

  • VC

  • TLC

  • FRC

  • RV


6
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Minute ventilation

How much air flows into and out of the respiratory tract in one minute

7
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Why can’t all 6,000 mL of air be used for gas exchange?

Some air is trapped in the conducting zone

8
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Alveolar ventilation rate

Measures flow of air into/out of alveoli in 1 minute

9
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Dead space volume

Air outside alveoli

10
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What enhances alveolar ventilation rate?

Depth of breathing

11
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What kind of breathing causes air to never reach exchange sites?

Rapid, shallow breathing (tachypnea)

12
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What is a better assessment of respiratory efficiency, minute ventilation or alveolar ventilation rate?

Alveolar ventilation rate