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Lung Function Tests - How To Prepare
About this test
Tell your doctor if you:
- Have had recent chest pains or a heart attack.
- Take medicine for a lung problem such as asthma. You may need to stop taking some medicines before testing.
- Are allergic to any medicines.
- Have had recent surgery on your eyes, chest, or abdomen, or if you have had a collapsed lung (pneumothorax).
Do not eat a heavy meal just before this test because a full stomach may prevent your lungs from fully expanding. You should not smoke or exercise vigorously for 6 hours before the test. On the day of the test, wear loose clothing that does not restrict your breathing in any way. You should also avoid food or drinks that have caffeine because it can cause your airways to relax and allow more air than usual to pass through.
If you have dentures, wear them during the test to help you form a tight seal around the mouthpiece of the spirometer.
| By: | Healthwise Staff | Last Revised: April 28, 2011 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine Mark A. Rasmus, MD - Pulmonology, Critical Care Medicine, Sleep Medicine | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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