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Source-backed patient guide
A renin test measures renin, a hormone involved in blood-pressure and fluid balance.
These operational details come from the laboratory catalogue. Confirm current availability and preparation with the laboratory before collection.
Patient education
A renin test measures renin, a hormone involved in blood-pressure and fluid balance.
It may be requested with aldosterone and other information when evaluating selected blood-pressure, adrenal, or electrolyte concerns.
Preparation varies by test and clinical context. Follow the laboratory instructions, disclose medicines and supplements, and do not change medicines unless a qualified professional tells you to.
These independent resources support the general patient education on this page. External links open outside the laboratory website.
Need this test? Contact our laboratory team to confirm current availability or referral options.
Next steps
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