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The Renin Test checks the level of renin, a hormone that helps control blood pressure and salt balance. It may also be called plasma renin activity or a direct renin concentration test. If your provider ordered it, you can book at participating labs on LabFinder.
This test can also appear as a renin activity test or renin assay. It shows how much renin your body is making and helps your doctor see why blood pressure may be high or low. It is often looked at with other results to guide care.
Common reasons: hard to control blood pressure, sudden high blood pressure at a young age, low potassium found on other tests, suspected issues with adrenal hormones, or concern for narrowing of the kidney arteries. Your doctor may pair renin with aldosterone to get a clearer picture.
Check in: show your ID and lab order and confirm any prep instructions. Settle in: some centers ask you to sit or lie quietly before the draw so the reading is steady. Blood draw: a phlebotomist cleans your arm and collects a small tube of blood, then places a bandage. Time at the site: plan for about 15 to 30 minutes including waiting.
Yes, this is a quick, routine blood draw and is considered very safe. You might feel a quick pinch, notice a small bruise, or feel a little lightheaded for a moment afterward, but those effects usually fade quickly. Be sure to tell the staff if you take blood thinners, have a bleeding disorder, or if you have fainted during blood draws before. They will take extra care to keep you comfortable. Some centers may ask you to rest before the draw to avoid result swings.
Medications: many blood pressure medicines and hormones can change renin levels, so follow your doctor’s instructions about what to pause or continue. Salt and fluids: keep your usual salt intake unless your doctor gives special directions, and drink water before your visit. Activity: avoid hard exercise right before the test. Position and timing: ask if you should be upright or lying down and how long to rest before the draw. Tell the team if: you are pregnant, recently changed medicines, or have kidney disease. Bring prior lab results if you have them.
Resistant high blood pressure, primary aldosteronism, narrowing of the kidney arteries, adrenal hormone problems, salt loss conditions, and sudden drops in blood pressure with dizziness. Results need context. Your doctor will review them with your history and symptoms before advising next steps.
You can compare locations, see time slots, and book online at participating labs. It is easy to search for a convenient location in your area or by city or ZIP. Coverage varies by plan and provider, so please confirm your benefits and any out of pocket costs when you book.
Book on LabFinder: find a lab today on our lab finder and request a test doctor guided.
The information on this page and throughout the LabFinder website and mobile app is for general informational purposes only. It is not intended to serve as medical advice, diagnosis, or treatment. For personalized medical advice or specific health concerns, please consult your healthcare provider directly.
Booking a Renin Test is easy using LabFinder. Just choose your location and enter your insurance information to find the closest Renin Test near you.
To make a same-day appointment for a Renin Test, just choose your location and your insurance information to find the closest Renin Test location near you. If there's availability for a same-day appointment at a nearby lab location, then you will be able to book it easily through LabFinder.
LabFinder allows you to easily schedule a Renin Test. You can search by location and insurance to easily book a Renin Test near you.
LabFinder allows you to easily make an appointment for a Renin Test online. To make an appointment for a Renin Test online, just choose your location and your insurance information to find the closest Renin Test near you.
Yes, you can get a Renin Test without insurance. LabFinder allows you to search and select "Self-Pay" when booking a Renin Test. While pricing for the test may not be immediately available, please check by calling the lab company directly for pricing.
