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Serum/plasma substance concentration for a specific protein marker (e.g., related to liver function or protein metabolism)

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

This test measures the amount of a particular protein in your blood, often used to assess liver health or protein balance.

Quick summary

["Your blood protein levels can signal liver function or metabolic health."]

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

Key facts at a glance

LOINC
12686-2
Short code
GH sp3 p chal SerPl-sCnc
Synonyms
GH sp3 p chal 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 healthcare provider may recommend this test if they suspect liver disease, protein disorders, or other metabolic conditions. It could also be part of routine monitoring for chronic illnesses like kidney disease or diabetes.

What to Expect Before the Test

No special preparation is typically needed, but you may be asked to fast for 8–12 hours if your provider specifies. Bring any medications or supplements you’re currently taking to your appointment.

How the Test Works

A blood sample is drawn from a vein, usually in your arm. The sample is then processed to measure the protein concentration using a specialized lab technique.

What the Results Mean

Results help determine if your liver or other organs are functioning properly or if protein levels are abnormal. Elevated or low levels may indicate underlying health concerns requiring further evaluation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

This test may be used to monitor liver enzymes, detect protein disorders, or assess metabolic health. Abnormal results could prompt additional testing or treatment adjustments.
This test is often performed alongside other blood tests (e.g., liver function tests) to provide a fuller picture of your health. Your provider will interpret results in the context of your symptoms and medical history.
How long will I need to wait for results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will contact you once they’re ready for discussion.
Can I eat or drink before this test?
Most tests don’t require fasting, but follow your provider’s instructions if they specify dietary restrictions for this particular 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 16, 2026. · Read our editorial policy