
Vector-borne disease diagnostics
IDEXX 4Dx Plus testing options.
Screen in-house or have our lab perform your testing, and get trusted results, support, and flexibility you need, when you need it.
Two ways to test.
Choose how and where you run your tests.
In-house
The SNAP 4Dx Plus Test provides reference lab technology in the palm of your hand. Get results in 8 minutes, and use the SNAP Pro Analyzer to simplify your workflow.
Reference lab
The Lab 4Dx Plus Test can be used for wellness screening, sick patient testing, as well as part of your broader IDEXX Preventive Care profiles.

SNAP 4Dx Plus Test
The SNAP 4Dx Plus Test provides reference-lab quality and accuracy at the point-of-care. It's the most trusted test for vector-borne disease, screening for 7 vector-borne pathogens at once, making it a clear choice for annual testing.
What makes the SNAP 4Dx Plus Test so reliable?
- Highly sensitive ELISA technology with uncompromised specificity.
- The only pet-side test with bidirectional flow, an integrated wash step, and enzyme amplification.
- Positive results that can be trusted to be positive.
IDEXX Reference Laboratories tests
Along with a variety of testing options, IDEXX Reference Laboratories programs will help you attain a comprehensive diagnosis with complimentary heartworm confirmatory testing and our reflex Lyme Quant C6 testing program for additional follow-up testing.
As a stand-alone test
7244-Lab 4Dx Plus Test
Immunoassays for canine heartworm antigen, Anaplasma spp., Ehrlichia spp., and Lyme C6 antibodies.
As part of a more complete parasite screen
31804-Fecal Dx Antigen Panel with Lab 4Dx Plus Test
Lab 4Dx Plus Test, Cystoisospora, flea tapeworm, hookworm, roundworm, and whipworm antigen immunoassays.