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Cracking the Cough Code: How Doctors Diagnose Chronic Cough
Published: Sep 11, 2023
Diagnosing chronic cough can feel like solving a mystery. Learn about the tools and tests doctors use to uncover the cause of your persistent cough.
The Initial Investigation
Your doctor will start with a detailed history and physical exam. They'll ask about the duration and nature of your cough, associated symptoms, and potential triggers. This information helps narrow down the possibilities and guide further testing.
Imaging: Looking Inside
A chest X-ray is often the first imaging test ordered. It can reveal issues like pneumonia, lung tumors, or heart problems. In some cases, a CT scan may be needed for a more detailed look at the lungs and airways.
Breathing Tests: Measuring Lung Function
Spirometry measures how much air you can breathe in and out. It can help diagnose conditions like asthma or COPD. A methacholine challenge test may be used to check for reactive airways if asthma is suspected but not confirmed by spirometry.
Specialized Tests: Digging Deeper
If initial tests don't provide answers, your doctor may recommend more specialized evaluations. These could include allergy testing, sinus imaging, or tests to check for acid reflux. In some cases, a bronchoscopy might be performed to examine the airways directly.
Frequently Asked Questions
Not always, but it's often recommended for chronic cough.
Most tests are painless or cause only mild discomfort.
It varies, but can take several weeks to complete all necessary tests.
They may help identify underlying conditions, but aren't usually definitive.
Some cases remain unexplained, but treatment options still exist.
Putting the Pieces Together
While diagnosing chronic cough can be complex, a systematic approach often leads to answers and effective treatment.
References
- Irwin RS, et al. Diagnosis and Management of Cough Executive Summary: ACCP Evidence-Based Clinical Practice Guidelines. Chest. 2006;129(1 Suppl):1S-23S.
- Morice AH, et al. ERS guidelines on the diagnosis and treatment of chronic cough in adults and children. Eur Respir J. 2020;55(1):1901136.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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