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Serum or plasma concentration of a substance measured by immunoassay (tetramethylbenzidine-based)

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

This test detects a specific protein or substance in your blood using a sensitive immunoassay method. It helps evaluate conditions related to immune function, inflammation, or other metabolic processes.

Quick summary

["This test may help diagnose or monitor certain health conditions by measuring specific proteins or substances in your blood."]

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

Key facts at a glance

LOINC
35679-0
Short code
VZV IgG+IgM Pnl CSF
Synonyms
VZV IgG+IgM Pnl CSF
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What This Test Measures

The test uses an immunoassay method with tetramethylbenzidine (TMB) to detect and quantify a particular substance in your serum or plasma. This technique relies on antibody interactions to identify and measure the presence of the target analyte.

Why It’s Ordered

Your healthcare provider may order this test to assess conditions such as immune system disorders, inflammation, or to monitor treatments affecting protein levels in the blood.

Common Uses

This test can be used for screening, confirmation, or monitoring purposes depending on clinical indications. It may be part of a broader diagnostic workup for conditions like autoimmune diseases, infections, or metabolic disorders.

Sample Collection and Preparation

A blood sample is collected from a vein, typically in the arm. The blood is processed to separate serum or plasma, which is then analyzed in the lab.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

TMB-based Immunoassay (Serum/Plasma)

Frequently asked questions

What does abnormal results mean?
Abnormal results may indicate an imbalance in the measured substance, which could be linked to underlying health issues such as infections, immune responses, or metabolic dysfunctions. Always discuss your results with your healthcare provider for personalized interpretation.
How soon will I get my results?
Results are typically available within a few days to a couple of weeks, depending on lab processing times and your healthcare provider’s workflow. Your provider will contact you once results are ready.
Can I fast before this test?
Fasting may not be required for this test, but follow your healthcare provider’s instructions regarding diet or medication adjustments before 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 16, 2026. · Read our editorial policy