Terms Associated with Special Tests
- Forced Expiratory Time (FET) — Using
the diaphragm of the stethoscope, listen over the trachea and time the
audible expiration. Following a deep breath, ask the patient to exhale as
quickly as possible. A forced expiration time of 6 or more seconds suggests
obstructive pulmonary disease.
Three consistent readings with a rest in between are most accurate. Use this
test to assess the expiratory phase of breathing in a patient suspected of
having an obstructive pulmonary disease.
Close window when finished