Spirometry

A. Definition of the Procedure

Spirometry : series of test used to detect problems in the performance capabilities of the pulmonary system
B. Purpose of the Procedure

1. Used to measure amounts of gas exchanged between the client and the atmosphere
2. Used in the diagnosis of chronic airflow limitation such as emphysema and bronchitis

C. Preparation of the Patient

1. Explain procedure to the client to allay anxiety and promote compliance at time of test.
2. Notify the respiratory therapist of all medications the client is receiving that affect respiratory function
3. Evaluate client’s response to procedure.

Spirometer



Spirometry Procedure



D. Procedure

1. Vital capacity : the maximum volume of air that can be exhaled after a maximum inhalation.
Reduced in chronic obstructive pulmonary disease
2. Tidal volume : the volume of air inhaled and exhaled with normal quiet breathing
3. Inspiratory Reserve Volume : the maximum volume of air that can be inhaled following a normal quiet exhalation.
4. Expiratory reserve volume : the maximum volume of air that can be exhaled following a normal quiet inhalation.
5. Functional residual capacity : the volume of air that remains in the lungs after normal, quiet exhalation.
6. Residual Volume : the volume of air that remains in the lungs after forceful exhalation


Spirometry Result

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