Angiotensinogen (Serum) Concentration
This test measures the amount of angiotensinogen, a protein in your blood that helps regulate blood pressure and fluid balance.
["Angiotensinogen levels can help assess kidney function and blood pressure regulation."]
Key facts at a glance
- LOINC
- 56757-8
- Short code
- Renin 100M p chal Plas-cCnc
- Synonyms
- Renin 100M p chal Plas-cCnc
- Category
- chemistry
- Sample
- plasma
- Container
- Lavender-top (EDTA) or Green-top (Heparin)
- Units
- N/A
- Ref low
- 44
- Ref high
- 147
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84075
- SNOMED
- 27550007
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms or conditions related to kidney disease, high blood pressure, or fluid imbalances. It could also be part of a broader evaluation for hereditary angioedema or other genetic blood pressure-related disorders.
What to Expect Before the Test
No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if your blood is drawn early in the morning. Wear a loose-fitting shirt for easy access to your arm.
How the Test Is Performed
A healthcare professional will insert a needle into a vein in your arm to collect a blood sample. You may feel a brief pinch, but the procedure is quick and typically painless. The blood will be sent to a lab for analysis.
What the Results Mean
Results are compared to a reference range specific to your age, sex, and overall health. Low levels may indicate kidney problems or genetic conditions affecting fluid balance, while high levels could suggest liver disease or other metabolic issues.
Reference range
Adult: 44-147 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal angiotensinogen levels can signal underlying conditions like hereditary angioedema, chronic kidney disease, or liver dysfunction. It may also help diagnose or monitor conditions affecting blood pressure regulation, fluid retention, or vascular health. Always discuss results with your provider for personalized interpretation.
Short name
Angiotensinogen
Frequently asked questions
What causes angiotensinogen levels to be low?
How often should I get this test?
Can diet or medications affect angiotensinogen levels?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy