Shunt vs. Dead Space vs. V/Q Mismatch | EXPLAINED

What is the Difference Between a Shunt, Dead Space, and V/Q Mismatch? Watch this video to find out!
💥Shunt vs Deadspace vs. V/Q Mismatch [Full Guide] ➜ ➜ ➜ https://bit.ly/3CUTjIv

In respiratory physiology, "shunt," "dead space," and "V/Q mismatch" refer to conditions affecting the efficiency of gas exchange in the lungs.

A shunt occurs when blood passes through the lungs without being oxygenated, either because the alveoli are not ventilated (no airflow) or there is a direct bypass, like in cardiac shunts. This results in venous blood mixing with arterial blood, leading to low oxygen levels in the blood. Conditions like atelectasis (collapsed lung areas) can cause shunts.

Dead space refers to areas of the lungs where ventilation (airflow) occurs, but no blood flow is available for gas exchange. In this scenario, oxygen is present in the alveoli, but because of absent or limited perfusion, it doesn't reach the bloodstream. This happens in conditions like pulmonary embolism, where blood flow to parts of the lung is blocked.

A V/Q mismatch occurs when there is an imbalance between ventilation (V) and perfusion (Q) in different areas of the lungs. Ideally, ventilation and blood flow should be matched for optimal gas exchange. A V/Q mismatch can lead to inefficient oxygen uptake or CO2 removal. Common causes include chronic obstructive pulmonary disease (COPD) and pneumonia, where some lung regions may be better ventilated than perfused, or vice versa.

Summary: A shunt involves no ventilation, dead space involves no perfusion, and a V/Q mismatch involves a combination of both imbalances.

💥Shunt vs Deadspace vs. V/Q Mismatch [Full Guide] ➜ ➜ ➜ https://bit.ly/3CUTjIv

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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
0:17 - Shunt
0:48 - Pnuemonia Like Conditions
0:58 - Dead Space
1:28 - V/Q Mismatch
1:45 - COPD
2:13 - Problem Of Perfusion

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