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From the PFT test. The glass box they put you into and have you blow in a tube. They measure that and then gives the the FEV1 that you can blow out in one second. If you take that number and look it up on the Gold Standards you will see where you are on the chart.
But your doctor should tell you if you ask them.
Although my pulmonologist doesn't use the old standards anymore he prefers the new ABCD standards. Which I agree are more accurate and helpful. They grade you more on what your exacerbations and treatments are over the past year or two.
Hopefully this helps you find out.
COPD staging is determined through specific medical tests, primarily:
1. Spirometry test - measures how much air you can exhale in one second (FEV1)
2. BODE Index assessment which looks at:
- Body mass index (BMI)
- Oxygen levels
- Breathing tests
- Exercise capacity (6-minute walking test)
If your current doctor isn't Show Full Answer
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