What is Pulmonary Surfactant? (Medical Definition)

What is Pulmonary Surfactant? Watch this video to learn about the medical definition and for a brief overview of this topic.
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Surfactant Definition
Surfactant plays an extremely important role in lung functionality. It's a liquid substance that lines the alveoli and without this coating, it makes it difficult for the lung to expand which makes it difficult for an infant to breathe. The production of surfactant begins to develop between 24 and 35 weeks of gestation. So, if an infant is born prematurely, the production of surfactant may have been inhibited which is when surfactant replacement therapy would be indicated.

Surfactant Replacement Therapy
Surfactant Replacement Therapy is a treatment modality that is often used in preterm infants with surfactant deficiency that involves the deliverance of exogenous surfactant in order to improve alveolar expansion. It's most often indicated in infants with RDS which stands for Respiratory Distress Syndrome. Infants with this condition usually require the administration of exogenous surfactant until their lungs mature enough to produce it on their own. In general, surfactant helps prevent alveolar collapse during exhalation which reduces work of breathing. It increases lung compliance and optimizes the surface area so that gas exchange can occur.

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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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