What is FVC in spirometry and what does it tell you?
FVC stands for Forced Vital Capacity. FVC determines the total exhaled volume of air. FVC tells the spirometry tester how much air volume the patient can exhale. The FVC will fall when the patient can’t inhale deeply or can’t exhale completely. The average FVC result for an elderly man is about four liters (one gallon) of air. The intent of this parameter is to detect restriction.
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