Contents
How Simple Tests Can Uncover Hidden Causes of Hypertension
Published: Mar 07, 2024
High blood pressure might be more than just a lifestyle issue; it could be due to primary aldosteronism. Learn about the tests that can reveal this condition.
The Role of Hormone Tests
Doctors use blood tests to measure levels of aldosterone and renin, two hormones that regulate blood pressure. In primary aldosteronism, aldosterone levels are high, and renin levels are low. These tests are usually done in the morning when hormone levels can be more accurately assessed. A specific ratio of these hormones helps doctors decide if further testing is needed.
Confirming the Diagnosis
If initial hormone tests suggest primary aldosteronism, doctors may perform additional tests to confirm it. This often involves tests that challenge the body's aldosterone production, like a saline infusion test or an oral sodium loading test. These confirmatory tests help ensure that the diagnosis is accurate, preventing unnecessary treatments.
Overcoming Testing Challenges
Testing for primary aldosteronism can be tricky because some medications can interfere with hormone levels. Doctors often continue most blood pressure medications during testing, though some may need to be paused. It’s crucial to follow medical advice closely to ensure test accuracy and avoid false results.
Frequently Asked Questions
Blood tests measuring aldosterone and renin levels are used.
Morning levels provide more accurate assessments of these hormones.
Doctors may repeat tests due to variability in hormone levels.
Key Takeaways
Could a simple test reveal the true cause of your high blood pressure?
References
- Funder JW, et al. J Clin Endocrinol Metab 2016; 101:1889.
- Brown JM, et al. Ann Intern Med 2020; 173:10.
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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