Which of the following forced vital capacity test times should be interpreted as normal?
A) Less than 4 seconds
B) 4 to 6 seconds
C) 6 to 8 seconds
D) 8 to 10 seconds

Question

Quizplus · Accepted Answer

A normal adult will exhale a forced vital capacity (FVC) within 4 to 6 seconds. Patients with restrictive lung diseases may blow out the FVC in less than 4 seconds. Patients with obstructive lung diseases will need more than 6 seconds to blow out the FVC.

Which of the Following Forced Vital Capacity Test Times Should