When to Add Mechanical Deadspace (Ventilator Settings) | TMC Practice Question

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

🚨TMC Test Bank (All Practice Questions) 👉 http://bit.ly/2IGeqSu
🚨Daily TMC Practice Questions (via Email) 👉 http://bit.ly/2NnXh3C

➡️ Question
A 74 kg male patient is intubated and receiving volume controlled A/C ventilation with the following settings: FiO2 of 50%, set rate of 15 breaths/min, and a set tidal volume of 550 mL. The patient’s total respiratory rate is 29 breaths/min and the following ABG results were obtained:
pH 7.53
PaCO2 27 torr
HCO3 23 mEq/L
BE -2
PaO2 82 torr
SaO2 97%
Which of the following would you recommend?
A. Increase the FiO2
B. Increase the set rate
C. Increase the set tidal volume
D. Add mechanical deadspace

Do you know the answer?

Let's break it down. The first thing you should do is interpret the ABG results:
-- The pH is increased.
-- The PaCO2 is decreased.
-- The Bicarb and BE are normal.
-- The oxygenation values are satisfactory.

This can be interpreted as: Acute Respiratory Alkalosis

This basically means that the patient is hyperventilating and blowing off too much CO2. That is what's causing the pH to be increased outside of the normal range. Since the PaO2 and SaO2 values are normal, you do not need to make any adjustments to the FiO2. The patient's breathing rate is already too fast, so you definitely do not need to increase the rate.

By looking at the patient’s body weight, which is 74 kg, you can quickly check to see if the tidal volume setting is appropriate. That falls within the 5-10 mL/kg normal range which confirms that the tidal volume setting is appropriate. So now, only one answer choice remains and that is to add mechanical deadspace, which is the best option for this patient in this case.

Adding mechanical deadspace to the circuit is a method for treating hyperventilation. It works because the patient will essentially rebreathe the gas from their anatomic deadspace which will, in turn, increase the PaCO2 level. For the TMC Exam, please remember that if a patient is hyperventilating and has a decreased PaCO2, you should try to decrease the minute ventilation by either decreasing the rate or tidal volume. Not only that, you can also increase the amount of deadspace which will increase the PaCO2 as well.

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

—————

📗 BEST STUDY GUIDES FOR YOU
▪ TMC Test Bank 👉 http://bit.ly/2IGeqSu
▪ Hacking the TMC Exam 👉 http://bit.ly/2XBc8do
▪ TMC Exam Bundle (Save $) 👉 https://bit.ly/34pqEsV
▪ Daily TMC Practice Questions 👉 http://bit.ly/2NnXh3C

💙MORE FROM RTZ
▪ Free TMC Practice Exam 👉 http://bit.ly/2XlwASL
▪ Free RRT Cheat Sheet 👉 http://bit.ly/2IbmOKB
▪ Resources for RT's 👉 http://bit.ly/2WVV5qo
▪ Testimonials 👉 http://bit.ly/2x7b5Gl

🌐FOLLOW US
▪ Instagram 👉 http://bit.ly/2FhF0jV
▪ Twitter 👉 http://bit.ly/2ZsS6T1
▪ Facebook 👉 http://bit.ly/2MSEejt
▪ Pinterest 👉 http://bit.ly/2ZwVLPw

🚑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.

💡AFFILIATE DISCLAIMER
This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you.

—————

⏰TIMESTAMPS
0:00 - Intro
0:25 - Practice Question
1:34 - Explanation
3:10 - Correct Answer

—————

🖼CREDIT FOR MUSIC AND GRAPHICS:
▪ Music provided by NoCopyrightSounds.
▪ Check It Out: http://bit.ly/2WtPq7h
▪ Graphics: www.canva.com
▪ Graphics: www.freevector.com
▪ Graphics: www.vecteezy.com
▪ Graphics: www.pngtree.com

#MechanicalVentilation #RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool