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Note: Predicted FVC should be "race corrected". If the predicted FVC is not already race corrected it should be reduced 12% for blacks or african americans and 15% for asians (multiply the predicted FVC*0.88 or 0.85).

What %Predicted is the FVC?

(Example: if the FVC is 3.86 Liters and the predicted FVC is 4.14 Liters the equation would be 3.86/4.14*100=).

HERE ARE THE LOWER LIMITS OF NORMAL (LLN) FOR FVC

MALES:

Age 6-11: 74.9% predicted

Age 12-24: 79.8% predicted

Age 25-39: 81.1% predicted

Age 40-84: 73.4% predicted

FEMALES:

Age 6-10: 73.0% predicted

Age 11-19: 74.9% predicted

Age 20-39: 76.9% predicted

Age 40-69: 75.2% predicted

Age 70-87: 71.8% predicted


Click on the appropriate choice below

FVC %predicted is at least LLN
FVC %predicted is less than LLN but at least 70
FVC %predicted is 60-69
FVC %predicted is 50-59
FVC %predicted is 34-49
FVC %predicted is less than 34
More FVC information