Immunoassay for Total Anti-IGG Antibody Levels (Serum)
This test measures your body’s immune response by detecting antibodies against immunoglobulin G (IGG), a key protein in your immune system. It helps identify whether your immune system is producing antibodies against foreign substances, including certain infections or autoimmune conditions.
["This test helps diagnose or monitor immune-related conditions by checking for abnormal antibody responses."]
Key facts at a glance
- LOINC
- 107001-0
- Short code
- T.pallidum Ab.IgM 47 Ser Ql IB
- Synonyms
- T.pallidum Ab.IgM 47 Ser Ql IB
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ib
- CPT
- 82784
- 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 Is Done
Your healthcare provider may order this test if you have symptoms of an immune disorder, such as frequent infections, unusual fatigue, or unexplained rashes. It could also be used to monitor treatment responses in conditions like autoimmune diseases or certain infections.
What to Expect Before the Test
No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if your blood is drawn early in the morning. Bring any medications or supplements you’re taking to your appointment.
What Happens During the Test
A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but the procedure is quick and typically painless. The blood sample is then sent to a lab for analysis.
What the Results Mean
Results are qualitative (yes/no) and indicate whether antibodies against IGG are present. High levels may suggest an immune response to infection, vaccination, or an autoimmune condition. Low levels could indicate immune deficiency or other health issues.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated antibody levels may help diagnose conditions like lupus, rheumatoid arthritis, or infections like COVID-19. Low levels might indicate immune system dysfunction, such as primary immunodeficiency or certain autoimmune disorders. Always discuss results with your doctor for personalized interpretation.
Short name
Anti-IGG Test
Frequently asked questions
Will this test show if I have a recent infection?
Can I eat or drink before this test?
What if my results are abnormal?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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