Plasma Renin Direct Test
- Category
- Hormones
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 5 days
- Fasting
- No Fasting
- Age
- 5+ Years
What Is This Test?
Measures the concentration of renin directly in plasma.
Why this test is performed?
Used with aldosterone (as the aldosterone/renin ratio) to screen for primary aldosteronism and evaluate high blood pressure.
Who should take this test?
Symptoms suggesting hormonal imbalance — weight change, fatigue, BP changes, growth problems — usually as advised by a doctor.
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
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- Report time: In 14 days
- No fasting
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- Report time: In 8 days
- No fasting
Frequently asked questions
Yes. Your doctor may adjust some medicines before testing.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 3–4 days after the sample reaches the lab. You will receive the report online.
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