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Horse Dander-Specific IgE, Qualitative

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

A blood test that detects IgE antibodies directed toward horse dander, helping evaluate possible allergic sensitization to horses.

Quick summary

["A positive result suggests an immune response to horse dander but does not by itself confirm a symptomatic horse allergy."]

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

Key facts at a glance

LOINC
15784-2
Short code
Deprecated Horse Dander IgE RAST Ql
Synonyms
Deprecated Horse Dander 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 test looks for IgE antibodies in blood that specifically react to proteins from horse dander, which is shed from a horse's skin, hair, and related material.

Why might I need this test?

It may be ordered if you develop sneezing, wheezing, hives, swelling, or other symptoms after contact with horses, horse bedding, or areas where horses are present. Your clinician will consider your exposure history and symptoms when interpreting the result.

How is the test performed?

A blood sample is collected and analyzed for horse dander-specific IgE. The laboratory method may vary, and the result is usually reported as positive or negative.

How do I prepare for the test?

No special preparation is usually required. Tell your clinician about recent horse exposure, allergy symptoms, and any medicines you take; do not stop allergy medicines without medical advice.

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

Horse Dander IgE

Frequently asked questions

Does a positive result mean I am allergic to horses?
Not necessarily. It shows sensitization to horse dander, and your clinician will interpret it alongside your symptoms, timing of exposure, and other possible causes.
What symptoms can occur with a horse dander allergy?
Possible symptoms include sneezing, runny nose, wheezing, coughing, hives, itching, or swelling. A severe reaction requires emergency care.
Can this test distinguish an allergy from other conditions?
No. The result alone cannot confirm that horse dander is causing your symptoms, so clinical evaluation and exposure history are important.
  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