Skip to content

Wheat Stem Rust IgG Antibody (Serum)

Published: August 9, 2026Updated: August 17, 2026

This test measures the level of antibodies your body produces in response to exposure to wheat stem rust, a fungal disease that affects wheat crops. Antibodies can indicate past or current immune activity against the pathogen.

Quick summary

["This test helps identify if your immune system has encountered wheat stem rust, which may be relevant in agricultural or research contexts."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
102658-2
Short code
Wheat Stem Rust IgE RAST
Synonyms
Wheat Stem Rust IgE RAST
Category
chemistry
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
Method
rast
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

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you are involved in wheat farming, research, or have symptoms that could be linked to an immune response to plant pathogens. It may also be used in studies evaluating plant disease resistance or immune responses in humans.

What to Expect Before the Test

No special preparation is typically required. You may be asked to fast for 8–12 hours before the test if your blood is drawn in the morning. Bring any medications or questions to your appointment.

What Happens During the Test

A healthcare professional will draw blood from a vein in your arm. The blood sample is sent to a lab for analysis using an immunoassay method to detect specific antibodies against wheat stem rust.

What the Results Mean

Positive results indicate the presence of antibodies, suggesting past exposure to wheat stem rust. The exact meaning depends on clinical context, such as whether you are a farmer, researcher, or have symptoms of infection.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Wheat Stem Rust Antibody Test

Frequently asked questions

Will this test show if I have wheat stem rust?
No, this test does not diagnose active infection with wheat stem rust. It only detects antibodies, which indicate past exposure or immune response, not current illness.
How long will I need to wait for results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will contact you with the outcome.
Can I take anything before the blood draw?
If fasting is required, avoid food or drink (except water) for 8–12 hours before the test. Always follow your provider’s instructions.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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 17, 2026. · Read our editorial policy