3. What is the alveolar ventilation of a patient with an inspiratory capacity is 4 L, an inspiratory reserve volume of 2 L, an anatomical dead space of 200 ml and a respiratory rate of 10 breaths/minute?
3. What is the alveolar ventilation of a patient with an inspiratory capacity is 4 L, an inspiratory reserve volume of 2 L, an anatomical dead space of 200 ml and a respiratory rate of 10 breaths/minute?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Transcribed Image Text:3. What is the alveolar ventilation of a patient with an inspiratory capacity is 4 L, an inspiratory
reserve volume of 2 L, an anatomical dead space of 200 ml and a respiratory rate of 10
breaths/minute?
Expert Solution
Step 1: Explanations of important respiratory parameters
Explanations of important respiratory parameters:
Inspiratory Capacity (IC):
- Maximum volume of air inhaled after a normal exhalation.
- IC = Tidal Volume + Inspiratory Reserve Volume.
Inspiratory Reserve Volume (IRV):
- Additional air inhaled after a normal inhalation.
- Represents extra air inhaled during a deep breath.
Anatomical Dead Space:
- Volume of the respiratory system where no gas exchange occurs.
- Includes trachea, bronchi, and bronchioles.
- Essential for air conduction but doesn't contribute to gas exchange.
Alveolar Ventilation (VA):
- Volume of fresh air reaching the alveoli per minute.
- Indicator of air available for gas exchange.
- Calculated as (Tidal Volume - Dead Space) x Respiratory Rate.
Tidal Volume (VT):
- Volume of air inhaled and exhaled during a single normal breath.
- Represents typical air exchange during regular, quiet breathing.
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