RAAS Screening Test

What is the RAAS Screening test?

The RAAS (Renin-Angiotensin-Aldosterone System) screening evaluates components of the RAAS pathway, which regulates blood pressure and fluid balance. It helps diagnose conditions like hypertension, adrenal gland disorders, and kidney dysfunction.


Why is this test performed?

It is used to assess causes of high blood pressure, differentiate between primary and secondary hypertension, and diagnose conditions like hyperaldosteronism or renin-secreting tumors.


How is the test conducted?

A blood sample is collected and analyzed for levels of renin, angiotensin, and aldosterone. Patients may need to follow dietary and medication restrictions before testing to ensure accurate results.


What do abnormal results indicate?

High aldosterone levels with low renin suggest primary hyperaldosteronism (Conn's syndrome), while high renin levels could indicate secondary hypertension or kidney disease.


What are the next steps if results are abnormal?

Further tests like imaging (CT scan of adrenal glands) or salt-loading tests may be needed. Treatment options vary and may include medication, lifestyle changes, or surgery for adrenal tumors.