The provider or technician administers a spirometry test to assess the patient's respiratory function. The spirometer is attached to a computer that records the total and timed vital capacity (maximum expired air) and expiratory flow rate (speed of expiration) and displays the results as a graph. The patient may or may not be required to exhale rapidly over 12 to 15 seconds after deep breathing.
For clinical responsibility, terminology, tips and additional info
start codify free trial.