When to Decrease the Minute Ventilation (TMC Practice Question)

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5 years ago

This video breaks down a TMC Practice Question about making the proper adjustments to a patient's Ventilator Settings. ✅
💥Full Guide on Ventilator Settings ➜ ➜ ➜ https://bit.ly/2KMrNle
💥Full Guide on Arterial Blood Gases ➜ ➜ ➜ http://bit.ly/2YYavvh

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➡️A 58-year-old postoperative male who weighs 172 lbs is receiving volume control A/C ventilation with the following settings:
Rate 16/min
Tidal volume 550 mL
FiO2 40%
His ABG results are as follows:
pH 7.51
PaCO2 30 torr
HCO3 23 mEq/L
BE -1
PaO2 117 torr
SaO2 99%

Based on this information, which of the following would you recommend?
A. Discontinue mechanical ventilation
B. Administer IV bicarbonate
C. Increase the peak flow setting
D. Decrease the minute ventilation

Do you know the correct answer? Let's break it down! The first thing you need to do is interpret the ABG results. The pH is increased, the PaCO2 is decreased, and the HCO3 is normal. This can be interpreted as: Acute Respiratory Alkalosis.

Since the PaCO2 level is decreased, it means that the patient is blowing off too much CO2. In other words, they're hyperventilating. So in order to correct the problem, we need to increase the PaCO2. And to do so, you must decrease the minute ventilation. There are two ways to do so: Decrease the rate or Decrease the tidal volume.

💥Full Guide on Ventilator Settings ➜ ➜ ➜ https://bit.ly/2KMrNle
💥Full Guide on Arterial Blood Gases ➜ ➜ ➜ http://bit.ly/2YYavvh

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🚑MEDICAL DISCLAIMER
Medicine and Respiratory Therapy are continuously changing practices. The information in this video is for educational and entertainment purposes only. For medical advice, please consult with a physician or qualified medical professional.

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⏰TIMESTAMPS
0:00 - Intro
0:35 - Practice Question
1:36 - Explanation
3:08 - Correct Answer

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