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Ghrelin (Serum or Plasma, Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of ghrelin, a hormone produced mainly in the stomach that helps regulate hunger and metabolism. It may be used to assess appetite, growth hormone function, or gut health.

Quick summary

["Ghrelin helps control hunger and may influence metabolism and growth hormone production."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
11015-5
Short code
GHBP SerPl-sCnc
Synonyms
GHBP SerPl-sCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 doctor may recommend this test if you have symptoms like unexplained weight changes, appetite issues, or conditions affecting hormone balance. It could also be part of evaluations for growth disorders, metabolic disorders, or gastrointestinal problems.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if your doctor specifies it. Bring any medications you’re currently taking, as some may affect results.

What the Test Involves

A healthcare provider will draw blood from a vein in your arm. The sample is sent to a lab for analysis. The test measures ghrelin levels in your serum or plasma.

Possible Results and Interpretation

Results are compared to a reference range for healthy adults, but individual results can vary based on factors like age, health status, and medications. Your doctor will discuss what your specific results mean in the context of your health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Ghrelin Level

Frequently asked questions

How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will contact you once they’re ready.
Can I eat or drink before this test?
If fasting is required, avoid food and liquids (except water) for 8–12 hours before testing. Check with your doctor for specific instructions.
Does this test interact with any medications?
Some medications, like certain appetite suppressants or hormonal treatments, may affect ghrelin levels. Always inform your doctor about all medications you’re taking.
  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 16, 2026. · Read our editorial policy