Hemoglobin A1c (HbA1c) with Autoimmune Screening
This test measures your long-term blood sugar levels (HbA1c) and evaluates certain autoimmune markers to help assess diabetes management and potential immune-related conditions.
["Helps track diabetes control and check for hidden autoimmune issues."]
Key facts at a glance
- LOINC
- 71694-4
- Short code
- Hgb Retic Qn Auto
- Synonyms
- Hgb Retic Qn Auto
- Category
- hematology
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 12
- Ref high
- 17.5
- Critical range
- 7 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- automated-count
- CPT
- 85018
- SNOMED
- 900000000000003004
- 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 HbA1c Matters
HbA1c reflects your average blood sugar over the past 2–3 months, giving doctors a clearer picture of how well your diabetes is managed. It’s a key tool for preventing complications like nerve damage or kidney disease.
Autoimmune Screening Overview
Autoimmune markers may be checked if you have symptoms like fatigue, joint pain, or unexplained infections. These tests help rule out conditions like lupus or rheumatoid arthritis that could affect blood sugar control or other health risks.
How the Test Works
Your blood sample is analyzed to measure HbA1c levels (typically via immunoassay) and selected autoimmune antibodies (e.g., antinuclear antibodies, rheumatoid factor). Results help guide treatment plans.
What to Expect Before the Test
No special preparation is needed. A simple blood draw from your arm is all that’s required. If autoimmune markers are included, your doctor may ask about recent infections or medications.
Reference range
Adult males: 13.5-17.5 g/dL; Females: 12.0-16.0 g/dLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
HbA1c + Autoimmune Check
Frequently asked questions
What does an abnormal HbA1c result mean?
Could autoimmune markers affect my HbA1c results?
Do I need fasting for this test?
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