Allergist

Spirometry (Lung Function Test)

Breathing test used to measure airflow and support asthma evaluation.

What is Spirometry (Lung Function Test)?

Spirometry is a common breathing test that measures how much air you can move in and out of your lungs and how quickly you can do it. It is often used to evaluate asthma and other conditions that affect breathing.

This procedure helps to:

Measure airflow and lung function
Support diagnosis of asthma
Assess severity of breathing problems
Monitor response to inhalers or other treatment
Help guide ongoing respiratory care

What to expect after Spirometry (Lung Function Test)?

During spirometry, you will take a deep breath and blow forcefully into a device several times. Some patients also repeat the test after using a bronchodilator to see whether airflow improves.

You will blow into a mouthpiece several times
Clear coaching is provided during the test
Some testing includes a bronchodilator and repeat measurements
Temporary lightheadedness can happen in some patients
Normal activities usually resume right away

Why is it performed?

• To evaluate suspected asthma
• To measure breathing symptoms such as wheezing or shortness of breath
• To monitor known asthma over time
• To assess treatment response
• To provide objective lung function data

Risks and Considerations

• Temporary cough or throat irritation
• Brief lightheadedness from forceful breathing
• Effort is required for accurate results
• Symptoms may be temporarily triggered in some patients
• Additional testing may be needed depending on findings

Early detection is important for managing the condition and preventing further complications.

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FAQs

Is spirometry painful?

No. It is not painful, but it does require strong breathing effort and may feel tiring for a short time.

How long does the test take?

The test is usually completed during the visit, though the timing depends on whether repeat measurements are needed.

Do I need to stop my inhaler before the test?

Possibly. Follow your provider’s instructions, because some medications may need to be held before testing.

Can children do spirometry?

Many children can complete spirometry if they are old enough to follow the breathing instructions.

When should I call my doctor?

Call your provider if breathing symptoms worsen after testing or if you have questions about the results.

Allergist

Doral Health & Wellness Allergist Department

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