Spirometers are usually flow measuring devices that use a variety of physical technologies to measure flow and then calculate volume with respect to time.

Spirometry is the standardised measurement of a forced expiration (and sometimes inspiration) into a calibrated measuring device known as a spirometer.

It is an essential investigation for diagnosis and severity assessment for patients with Asthma, COPD and other respiratory conditions.Spirometry is the recommended objective test performed to identify abnormalities in lung volumes and air flow. It is used in conjunction with physical assessment, history taking, blood tests and x-rays, to exclude or confirm particular types of lung disease, enabling timely diagnosis and treatment.

To be valid spirometry that is used for diagnosis must be quality-assured and should only be performed by people who have been trained (a qualified healthcare provider).

What to avoid before a Spirometry test

• Smoking for at least 24 hours before the test.
• Eating a large meal before the test.
• Vigorous exercise before the test.
• Wearing tight clothing.

Remember to always carry your existing inhaler(s) during the doctor’s appointment.