Greetings all. Question came up about a definition for "timed vital capacity", or TVC. Measures the amount of air in the lungs expelled with force. I wasn't finding it, and came across a similar test called "forced expiratory volume", FEC. I have limited print resources and I'm not finding a lot on the internet.
Seems like they are similar tests, but separate. We don't get the difference and wondered if anyone out there has a manual or something we can cite to which will tell us more.

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