Renin
This test measures the level of renin in your blood.
Renin is an enzyme, a protein that speeds up certain chemical reactions in your body. It's made by your kidneys. When your blood pressure or sodium decreases or your potassium increases, your kidneys release renin. That's because renin also acts as a hormone (a chemical messenger in your bloodstream that controls the actions of certain cells or organs) to help control your blood pressure.
A renin test (or renin and aldosterone test) is used to find out if your adrenal glands are making too much or too little aldosterone.
Source: MedlinePlus, U.S. National Library of MedicineNormal range
Result tiers from clinical guidelines, not a single normal band.
| Source | Sex | Age | Range |
|---|---|---|---|
| Mayo Clinic Laboratories (Test Catalog) | All | all ages | 2.9–10.8 ng/mL/h |
| Mayo Clinic Laboratories (Test Catalog) | All | all ages | 2.9–24 ng/mL/h |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | All | all ages | 2.9–24 ng/mL/h |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | All | all ages | 2.9–10.8 ng/mL/h |
What a high or low result can mean
LOINC2HPO, Monarch InitiativeA high result Increased circulating renin concentration
A low result Decreased circulating renin concentration
This is reference information, not a diagnosis: only a clinician can interpret your result in context.
- Sample
- Serum or plasma · LOINC
- Collection
- 0.8 mL · Mayo Clinic Laboratories (Test Catalog)
- Part of
- Aldosterone and renin activity panel
- Listed under
- Addison Disease · Adrenal Gland Disorders · High Blood Pressure · Hormones
- Code
- LOINC 2915-7 · ng/mL/h
- Also called
- Active renin, Angiotensinogenase, PRA
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