Erythropoietin Antibody Screening, Serum
This test checks for the presence of antibodies against erythropoietin (EPO), a hormone that stimulates red blood cell production. It may be used to evaluate autoimmune conditions or drug interactions that could interfere with blood cell production.
["This screening helps rule out rare causes of low red blood cell counts linked to antibody interference."]
Key facts at a glance
- LOINC
- 77350-7
- Short code
- EPO Ab Ser Ql
- Synonyms
- EPO Ab Ser Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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 Might Be Ordered
Your doctor may recommend this test if you have unexplained low red blood cell counts (anemia), particularly if other causes like iron deficiency or vitamin deficiencies have been ruled out. It could also be done if you’re taking medications that might affect blood cell production or if you have symptoms like fatigue or weakness that don’t fit typical anemia patterns.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into your arm or hand to draw blood from a vein. The process takes about 5 minutes, and you may feel a brief pinch. If you’re nervous, let your healthcare provider know—they can help make it more comfortable.
What the Test Results Mean
A positive result means antibodies were detected, which could explain your symptoms or lab findings. A negative result means no antibodies were found, and other causes of anemia or blood cell issues would need further investigation. Your doctor will discuss results with you in detail.
Common Reasons for Testing
This test is often used in patients with autoimmune diseases (like lupus or rheumatoid arthritis), those on certain medications (such as chemotherapy or immunosuppressants), or individuals with unexplained anemia that doesn’t respond to standard treatments.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Detecting EPO antibodies helps identify a rare but important cause of anemia called autoimmune hemolytic anemia or drug-induced erythropoietin resistance. It can guide treatment decisions, such as adjusting medications or exploring alternative therapies to support healthy blood cell production.
Short name
EPO Antibody Screen
Frequently asked questions
Will this test affect my medications?
How often should I get this test?
Can I prepare for this test at home?
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