A thorough explanation of lung function testing and spirometry interpretation, in simple language, with examples. I explain the what the main lung function tests are, why spirometry values may be wrong, how to perform spirometry, the FEV1 (forced expiratory volume in the first second), the FVC (forced vital capacity) and the FEV1/FVC ratio. The video ends with examples of normal vs. abnormal spirometry, looking at trends in the FVC over time, obstructive and restrictive patterns.

Timestamps:

01:15 What is lung function testing?
02:10 Types of lung function tests
07:09 Spirometry
10:04 Wrong results on spirometry
13:58 Most important results
15:30 How is spirometry performed?
17:57 FEV1, FVC, FEV1/FVC ratio
21:30 Liters (L) vs. percent predicted (%)
24:01 Normal spirometry
27:32 Defining normal is difficult (examples)
30:13 FVC trends over time (with examples)
34:46 Obstructive pattern (COPD)
39:28 Restrictive pattern (pulmonary fibrosis)

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#spirometry #lungs

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Disclaimers:

For all viewers/listeners:
The information presented here or in other videos and posts on this channel is not medical advice. These materials reflect general medical knowledge which may not apply to your individual case. If you have health concerns, please see your own doctor or other healthcare provider without delay.

For medical professionals:
You must use your professional judgement when treating your patients. The information presented in this and other videos/posts on this channel is for general medical education only. It may not apply to all patients or clinical scenarios.
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