Rat Allergy Test
Below is a plain-language overview of the rat allergy test. The rat allergy test is a blood test that checks for an allergic response to proteins found in rat urine, saliva, and dander. It is usually ordered when a person has symptoms such as sneezing, wheezing, or hives after being around rats, often in a home or workplace setting.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
The rat allergy test is a blood test that checks for an allergic response to proteins found in rat urine, saliva, and dander. It is usually ordered when a person has symptoms such as sneezing, wheezing, or hives after being around rats, often in a home or workplace setting.
What it measures
- Specific IgE to rat epithelium — Antibodies that react to proteins in rat skin and fur.
- Specific IgE to rat urine proteins — Antibodies that react to proteins in rat urine, a common allergen.
- Specific IgE to rat saliva proteins — Antibodies that react to proteins in rat saliva.
- Total IgE — A general measure of allergic tendency, not specific to rats.
Who it is for
A doctor or allergist typically orders this test for people with suspected rat allergy, especially those who keep pet rats, work with rats, or live in areas with rodent exposure.
Preparation
No fasting or special preparation is needed. The blood sample can be taken at any time of day.
Results and what they mean
Results are reported as levels of specific IgE antibodies, often on a scale from negative to high. A clinician interprets these numbers along with your symptoms and history. This is general information only and not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the rat allergy test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to avoid rats before the test?
No, you do not need to change your exposure. The test measures antibodies that are already in your blood.
How long does it take to get results?
Most results are available within 1 to 3 business days.
Is this test painful?
It uses a standard blood draw from a vein, which feels like a quick pinch.
Can this test tell me if I will have a severe reaction?
No, it shows sensitization but does not predict how severe a future reaction might be. Your doctor will assess your risk.