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Cytocompass - Comprehensive Immunoglobulin Profile (Serum)

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

This test measures levels of key antibodies (immunoglobulins) in your blood, including IgG, IgA, IgM, and sometimes IgE, to assess immune function and identify potential deficiencies or abnormalities.

Quick summary

["This test helps diagnose and monitor conditions related to your immune system."]

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

Key facts at a glance

LOINC
104866-9
Short code
Cyto Comp Assist Cvx
Synonyms
Cyto Comp Assist Cvx
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
cyto-stain-thin-prep-computer-assisted
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 Does This Test Measure?

Your blood contains several types of antibodies, called immunoglobulins (Ig), which play a vital role in fighting infections and diseases. This test typically includes measurements for IgG, IgA, and IgM, which are the most common types. Some panels may also include IgE, which is involved in allergic reactions. Each immunoglobulin has a distinct role in immunity, and their levels can vary based on health status, age, and medical conditions.

Why Might You Need This Test?

Doctors may order this test if you have symptoms of a weakened immune system, such as frequent infections, unexplained fatigue, or autoimmune conditions. It can also be used to monitor immune responses before or after treatments like chemotherapy or organ transplants. Children with recurrent infections or developmental delays may also be tested for immunoglobulin levels.

Preparation for the Test

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw blood, which usually takes just a few minutes. If you are on blood thinners or have a history of bleeding disorders, let your healthcare provider know before the test.

What to Expect After the Test

After the blood draw, you may feel a slight pinch or bruising at the site, but this usually goes away quickly. You can resume your normal activities immediately. If you experience excessive bleeding or pain, contact your healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Immunoglobulin Panel

Frequently asked questions

How Long Does It Take to Get Results?
Results from this test are typically available within 1 to 3 business days, depending on your laboratory and healthcare provider’s process. Your doctor will discuss the results with you during your follow-up appointment.
What Are the Common Reference Ranges?
Reference ranges for immunoglobulins can vary by lab and individual factors like age and health. Generally, IgG is the most abundant immunoglobulin, while IgA and IgM have different roles and levels depending on the context. Your doctor will interpret the results in relation to your specific health needs and medical history.
Can This Test Be Used to Diagnose Allergies?
No, while IgE levels can be elevated in allergic reactions, this test alone is not diagnostic for allergies. Allergies are typically diagnosed through skin tests, blood tests for specific IgE antibodies, or medical history evaluation. Your doctor may recommend additional tests if needed.
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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