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Serum/plasma concentration of a specific protein analyte detected by immunoassay probe (e.g., a marker for protein-related conditions)

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

This test measures the amount of a particular protein in your blood, often used to assess health conditions affecting protein levels.

Quick summary

["Protein levels can signal underlying health concerns that may require further medical evaluation."]

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

Key facts at a glance

LOINC
71786-8
Short code
S aureus eta gene Spec Ql NAA+probe
Synonyms
S aureus eta gene Spec Ql NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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

What This Test Measures

The test detects a specific protein in your serum or plasma using a sensitive immunoassay method. This method identifies the protein by its unique structure, helping doctors monitor conditions like kidney disease, liver function, or immune system disorders.

Why It’s Ordered

Your healthcare provider may order this test if you have symptoms like swelling, fatigue, or unexplained weight changes, or if you’re at risk for conditions that alter protein levels.

Common Conditions Monitored

Protein tests like this can help diagnose or track conditions such as proteinuria (protein in urine), hypoalbuminemia (low blood protein), or certain inflammatory diseases.

Sample Preparation

A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate serum or plasma for testing. Avoid eating or drinking for a few hours before the test if instructed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Frequently asked questions

Abnormal protein levels may indicate kidney disease, liver problems, infections, or other systemic conditions. Early detection can guide treatment decisions, such as managing fluid retention or adjusting medications.
This test alone may not provide a definitive diagnosis. Your doctor will consider your symptoms, medical history, and other test results to interpret the results accurately.
How long will I wait to get my results?
Results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will contact you with the final report.
Can I eat or drink before this test?
Follow your doctor’s instructions regarding fasting or dietary restrictions. Generally, avoid food/drink for 8–12 hours before blood draw if specified, but confirm with your provider.
  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