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What is Functional Residual Capacity (FRC)? We created this video to cover the medical definition and provide a brief overview of this topic.
💥Functional Residual Capacity [Full Guide] ➜ ➜ ➜ https://bit.ly/3Td7KkE
💥Respiratory Therapy Definitions [Glossary] ➜ ➜ ➜ https://bit.ly/3g6s4Pj

➡️ Functional Residual Capacity (FRC)
FRC is essentially the sum of the Expiratory Reserve Volume (ERV) and Residual Volume (RV).

FRC = ERV + RV

The Expiratory Reserve Volume is the additional air that can be forcefully expelled following a normal exhalation, while the Residual Volume is the air that remains in the lungs even after a maximal exhalation. It plays a significant role in the mechanical aspects of breathing. The lungs and the chest wall naturally want to move in opposite directions; the lungs aim to collapse inward, while the chest wall strives to expand outward. The FRC is the equilibrium point at which these two opposing forces are balanced, which means that no additional muscular effort is needed to keep the lungs at this volume. This balance is also essential for maintaining the functional elasticity of the lungs.

The FRC serves as a reservoir for oxygen, ensuring a continuous supply of oxygen to the bloodstream, even between breaths. The FRC is, therefore, integral to maintaining adequate gas exchange, especially during physical activities when the body's demand for oxygen increases. Clinical assessment of FRC can be crucial in diagnosing and managing various respiratory disorders. A reduced FRC may indicate restrictive lung diseases like pulmonary fibrosis, while an increased FRC could be a sign of obstructive diseases like chronic obstructive pulmonary disease (COPD) or asthma.

The FRC is often measured using techniques like helium dilution or body plethysmography. Additionally, FRC is a valuable parameter to consider during the mechanical ventilation of critically ill patients. An inappropriate FRC can lead to inadequate oxygenation and can also increase the work of breathing, exacerbating the patient's condition. This is why an understanding of FRC is not just theoretically important but has practical implications in critical care, diagnostics, and treatment planning for respiratory conditions.

The Functional Residual Capacity is a key physiological parameter that serves multiple roles, from acting as a balance point for the mechanical forces acting on the lungs to serving as a reservoir for oxygen. Its assessment is essential for diagnosing a range of respiratory conditions and for the management of mechanically ventilated patients.

💥Functional Residual Capacity [Full Guide] ➜ ➜ ➜ https://bit.ly/3Td7KkE

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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
0:35 - FRC
0:43 - Expiratory Reserve Volume
2:04 - Clinical assessment
2:44 - Inappropriate FRC

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