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Serum Angiotensinogen Concentration (Mass Concentration)

Published: August 9, 2026Updated: August 15, 2026

This test measures the amount of angiotensinogen, a protein produced by the liver that helps regulate blood pressure and fluid balance. It may be checked if you have suspected liver disease, kidney problems, or conditions affecting blood pressure regulation.

Quick summary

["Angiotensinogen levels can help diagnose or monitor conditions linked to liver or kidney function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 15, 2026Editorial policy

Key facts at a glance

LOINC
44032-1
Short code
ASPNHAB
Synonyms
A niger H Ab Ser Ql ID
Category
chemistry
Sample
serum
Container
Serum separator tube (SST) or red-top vacutainer tube without anticoagulant
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 0 years
Method
immune-diffusion
CPT
86003
SNOMED
395127008
Specimen volume
1.0 mL serum (minimum 0.5 mL)
Stability
Serum stable for 7 days at 2-8°C; for longer storage, freeze at -20°C or below. Avoid repeated freeze-thaw cycles.
Hemolysis max
2
Lipemia max
2
Icterus max
2
TAT
48–168 hours
Order
routine

Why Might This Test Be Ordered?

Your healthcare provider may order this test if you have symptoms like unexplained fatigue, swelling, or changes in blood pressure. It’s also used to evaluate liver function or check for conditions like hereditary angioedema or chronic kidney disease.

What Does a Result Mean?

Results may indicate liver or kidney issues, but they’re not standalone diagnoses. Your provider will interpret results alongside other tests and your medical history.

How Is This Test Done?

A blood sample is drawn from a vein, typically in your arm. The serum (liquid part of blood) is then analyzed for angiotensinogen levels using a specialized laboratory method.

What Preparations Are Needed?

No special preparation is usually required, but avoid eating or drinking for a few hours before the test if instructed by your provider.

Reference range

Negative (No precipitating antibodies detected against Aspergillus niger)N/A

Specimen: serum

No special patient preparation required. Fasting is not necessary.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Angiotensinogen Level

Frequently asked questions

What causes abnormal angiotensinogen levels?
Abnormal levels can result from liver disease (e.g., cirrhosis), kidney disease, or genetic conditions like hereditary angioedema. Stress, medications, or other health conditions may also influence results.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times.
Can lifestyle changes affect this test?
Dietary changes or medications (e.g., blood pressure drugs) may indirectly impact angiotensinogen levels, but your provider will guide you on how to prepare for the test.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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 15, 2026. · Read our editorial policy