Suidasia rostrata-Specific IgE Antibody, Serum — Radioallergosorbent Test (RAST), Qualitative (Deprecated)
A legacy blood test for IgE antibodies to the storage-mite allergen Suidasia rostrata. A positive result suggests allergic sensitization but does not by itself confirm allergy.
["This deprecated test can indicate sensitization to Suidasia rostrata, but symptoms and exposure history must also be considered."]
Key facts at a glance
- LOINC
- 15769-3
- Short code
- Deprecated S rostrata IgE RAST Ql
- Synonyms
- Deprecated S rostrata IgE RAST Ql
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84484
- SNOMED
- 302774002
- 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 is this test?
This is a qualitative blood test that detects IgE antibodies directed against Suidasia rostrata, a mite associated with stored grain and other stored products. It was performed using a radioallergosorbent test, or RAST, method. The test is deprecated and may no longer be available.
Why might I need this test?
The test may have been used to evaluate suspected allergy symptoms such as sneezing, wheezing, cough, or hives after exposure to infested grain, hay, or stored products. It was also used as part of broader allergy testing when a particular storage-mite allergy was suspected.
How is the test performed?
A blood sample is tested for allergen-specific IgE using the RAST method. The result is reported as positive or negative rather than as a measured concentration.
How do I prepare for the test?
No special preparation is generally required for a blood draw. Do not stop antihistamines or other allergy medicines unless your healthcare professional advises you to do so, because they can affect the interpretation of allergy testing.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A positive result indicates that the immune system has produced IgE antibodies against Suidasia rostrata, which is consistent with sensitization to this storage-mite allergen. It does not prove that the allergen is causing the person's symptoms; exposure history, symptoms, and sometimes confirmatory testing must also be considered. A negative result makes IgE-mediated allergy to this allergen less likely but does not completely exclude it.
Short name
Suidasia rostrata-Specific IgE (RAST)
Frequently asked questions
What does a positive result mean?
Can this test diagnose a storage-mite allergy?
Why is this test marked as deprecated?
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 17, 2026. · Read our editorial policy