Cycle Variable in Mechanical Ventilation (Quick Explainer Video)

What is a Cycle Variable in Mechanica Ventilation? This video covers the medical definition and provides a brief overview of this topic.
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➡️ What is a Cycle Variable?
A cycle variable on the mechanical ventilator must be reached in order for the inspiratory phase to end. The machine is able to measure the cycle variable during inspiration and determine when to end gas flow to transition to the expiratory phase.

➡️ Types of Cycle Variables:
- Pressure
- Volume
- Flow
- Time

➡️ Examples:
During pressure-cycled ventilation, the inspiratory phase ends whenever a preset pressure threshold is reached in the upper airway. During volume-cycled ventilation, the inspiratory phase ends whenever a preset volume has been delivered. During flow-cycled ventilation, the expiratory phase begins once the flow has decreased to a preset value during inspiration. During time-cycled ventilation, the inspiratory phase ends whenever a preset time has elapsed. Once the cycle variable is reached, it triggers the ventilator to open the expiratory valve which causes inspiration to end and expiration to begin.

➡️ Most Used
Time-cycled ventilation is most often used in mandatory ventilator modes. Flow-cycled ventilation is most often used during spontaneous ventilator modes. An example would be during pressure support ventilation. The two most commonly used control variables in mechanical ventilation are volume and pressure.

💥Ventilator Settings [Full Guide] ➜ ➜ ➜ https://bit.ly/2KMrNle
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💥Ventilator Alarms [Full Guide] ➜ ➜ ➜ https://bit.ly/2Ikujlo

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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.

💡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.

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⏰TIMESTAMPS
0:00 - Intro
0:24 - Cycle Variable
0:43 - Types of Cycle Variables

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#MechanicalVentilation #CycleVariable #VentilatorSettings