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2. Ms. Vader develops a fever. As a result, her respiratory rate increased to 28bpm, and her tidal is 350mL. What is her minute ventilation, her alveolar tidal volume, her alveolar minute ventilation?

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Ms. Vader's minute ventilation is 9800 mL/min, alveolar tidal volume is 200 mL, and alveolar minute ventilation is 5600 mL/min.

Ms. Vader's respiratory parameters provide valuable insights into her respiratory function.

Minute ventilation (MV) is the total volume of air breathed in one minute and is calculated by multiplying the respiratory rate (RR) by the tidal volume (TV).

In this case, Ms. Vader's minute ventilation would be:

MV=RR×TV=28 bpm×350 mL=9800 mL/min

To determine the alveolar tidal volume (Vt_alv), we need to account for the anatomical dead space. The anatomical dead space is typically around 150 mL. Therefore, the alveolar tidal volume is:

Vt alv​ =TV−Dead Space=350 mL−150 mL=200 mL

Finally, alveolar minute ventilation (MV_alv) is the volume of fresh air reaching the alveoli per minute.

It is calculated by multiplying the alveolar tidal volume by the respiratory rate:

MV alv=RR× Vt alv =28 bpm×200 mL=5600 mL/min

Ms. Vader's minute ventilation is 9800 mL/min, her alveolar tidal volume is 200 mL, and her alveolar minute ventilation is 5600 mL/min.

These parameters provide important information about her respiratory status and can aid in assessing and managing her condition.

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