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## How to Pass a Spirometry Test for Scuba Diving

Spirometry is a breathing test that measures how much air you can inhale and exhale, and how quickly you can do so. It’s a common part of a scuba diving medical exam, and it’s important to pass the test in order to be cleared for diving.

**How to Prepare for a Spirometry Test**

Here are some tips on how to prepare for a spirometry test:

* Avoid smoking for at least 6 hours before the test.
* Avoid strenuous exercise for at least 24 hours before the test.
* Get a good night’s sleep before the test.
* Eat a light breakfast or lunch before the test.
* Bring your inhaler with you if you have asthma or another respiratory condition.

**The Spirometry Test**

The spirometry test is a simple and painless procedure. You will be asked to sit in a chair and breathe into a mouthpiece that is connected to a spirometer. The spirometer will measure the volume of air that you inhale and exhale, and the speed at which you do so.

The test will take about 10 minutes to complete. You will be asked to take several deep breaths and exhale as forcefully as possible. You will also be asked to hold your breath for a few seconds.

**Passing the Spirometry Test**

The passing criteria for a spirometry test for scuba diving vary depending on the diving organization. However, most organizations require that you:

* Have a forced expiratory volume in one second (FEV1) of at least 80% of predicted
* Have a forced vital capacity (FVC) of at least 80% of predicted
* Have a FEV1/FVC ratio of at least 70%

If you do not pass the spirometry test, you may be asked to retake the test or to see a pulmonologist for further evaluation.

**Tips for Passing the Spirometry Test**

Here are some tips for passing the spirometry test:

* Practice taking deep breaths and exhaling forcefully.
* Warm up your lungs by doing some light exercise before the test.
* Relax and focus on breathing slowly and deeply.
* Don’t give up if you don’t pass the test on the first try. You can retake the test as many times as necessary.

**What if I Don’t Pass the Spirometry Test?**

If you do not pass the spirometry test, you may still be able to dive. However, you will need to see a pulmonologist for further evaluation. The pulmonologist will perform a more detailed examination of your lungs and may order additional tests, such as a chest X-ray or a CT scan.

The pulmonologist will determine if you have any underlying respiratory conditions that would prevent you from diving safely. If you do have a respiratory condition, the pulmonologist may recommend that you take medication or undergo treatment before you can dive.

**Conclusion**

The spirometry test is a simple and painless procedure that can help to ensure that you are fit to dive safely. By following the tips in this article, you can increase your chances of passing the test and getting cleared for diving.

Read More  How to train for scuba diving

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