Aldosterone-to-Renin Ratio Testing in Pendleton Explained
This page explains the aldosterone-to-renin ratio test in Pendleton, OR, what it measures, and how to arrange it. The aldosterone-to-renin ratio (ARR) is a blood test that compares two hormones involved in blood pressure and salt balance. It is most often ordered to help evaluate resistant high blood pressure or to screen for a hormone-related cause of hypertension.
For the full, location-independent guide to this test, see Aldosterone-to-Renin Ratio Testing explained.
- Sample type
- blood
- Category
- Hormone
- Turnaround
- 1-3 business days
- Price
- $149
- Referral
- Not required
The aldosterone-to-renin ratio (ARR) is a blood test that compares two hormones involved in blood pressure and salt balance. It is most often ordered to help evaluate resistant high blood pressure or to screen for a hormone-related cause of hypertension.
About aldosterone-to-renin ratio testing in Pendleton
Home to roughly 16,861 people, Pendleton is a smaller community in Pacific. Coastal metros, inland towns, and rural counties with very different access to testing — worth weighing when you schedule a visit.
Review the tests below, read plain-language explanations of each, and request the one you need in Pendleton.
Confidentiality is built in — orders are private and results are accessed securely. Always confirm current preparation steps, hours, and any fees directly with the collection lab.
What it measures
- Aldosterone — A hormone from the adrenal glands that helps the body retain sodium and water.
- Renin — An enzyme from the kidneys that controls aldosterone production.
- Aldosterone-to-renin ratio — A calculated number comparing aldosterone to renin; a high ratio can suggest overproduction of aldosterone.
- Potassium — Often checked alongside, because aldosterone affects potassium levels.
Preparation
Preparation depends on your clinician's instructions. You may be asked to adjust certain blood pressure medicines, avoid high-salt foods, and sit or stand for a set time before the draw; fasting is not always required.
Results and what they mean
Results are reported as separate aldosterone and renin values plus the calculated ratio. Reference ranges vary by lab and by the conditions of collection, so a clinician interprets the numbers in context. This is general information, not medical advice; discuss your results with your healthcare provider.
How to order in Pendleton
- Place a confidential order for the aldosterone-to-renin ratio testing online.
- Choose a collection site in or near Pendleton, OR.
- Attend your appointment — most draws take only a few minutes.
- Review results securely, typically within 1–3 days.
Confirm preparation, hours, and any fees with the collection lab in Pendleton before your visit.
Frequently asked questions
Do I need to stop my blood pressure medications?
Only if your clinician tells you to. Some medicines affect aldosterone and renin, so they may adjust your regimen before testing. Never stop or change a prescription on your own.
Is this test the same as a renin test?
No. A renin test measures renin alone, while the ARR compares aldosterone to renin in one calculation.
How long until I get results?
Typical turnaround is about 1 to 3 business days, though it can vary by laboratory.
Can I eat before the test?
Ask your clinician. Fasting is not always required, but sodium intake and body position can affect the results.