Airway Pressure Release Ventilation (APRV) | Quick Explainer Video

What is Airway Pressure Release Ventilation (APRV)? Watch this video for a quick explainer video on this topic.
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➡️ APRV Overview
APRV stands for Airway Pressure Release Ventilation. It's a mode of mechanical ventilation in which two levels of continuous positive airway pressure are applied with an intermittent release phase for spontaneous breaths. This mode is often recommended to improve oxygenation and treat refractory hypoxemia. Since it has two levels of pressure, this mode is often confused with BiLevel. With that said, while very similar, they are technically two different operational modes of ventilation.

➡️ Indications for APRV:
- Acute Lung Injury (ALI)
- Acute Respiratory Distress Syndrome (ARDS)
- Severe atelectasis

➡️ As I previously mentioned, this mode has two levels of pressure that must be set on the machine:
- High level
- Low level

Time-triggered mandatory breaths are delivered by the machine, however, the patient is allowed to take spontaneous breaths in between the mandatory breaths. Each mandatory breath is time-cycled by a preset inspiratory time.

➡️ So, on the machine, you will be able to set a:
- High inspiratory time
- Low inspiratory time

APRV is a pressure-limited mode, therefore, the patient's tidal volume will vary depending on their lung compliance and airway resistance. Because of this, as a Respiratory Therapist, you need to monitor the exhaled tidal volume in order to prevent hyperinflation. For this video, again, we just wanted to provide a quick overview of this mode of ventilation. If you would like for us to dive even deeper in a separate video, let us know down in the comments section below.

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🚑MEDICAL DISCLAIMER
This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time.

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⏰TIMESTAMPS
0:00 - Intro
0:29 - APRV Overview
1:02 - Indications for APRV
1:13 - Two Levels Pressure
1:37 - Machine Settings

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#MechanicalVentilation #VentilatorModes #APRV