SNAP 4Dx Plus Test

The gold standard. And all that comes with it.

The IDEXX SNAP 4Dx Plus Test is the most accurate solution available for detecting vector-borne disease1–3—now with IDEXX DecisionIQ for added clarity in determining next steps.
  • Store tests at room temperature for up to 6 months for improved workflow.
  • Test annually to help prevent the spread of heartworm disease, Lyme disease, ehrlichiosis, and anaplasmosis while increasing awareness of these vector-transmitted diseases.
  • Get reference lab-quality technology for superior diagnostic accuracy at the point of care.
  • Automatically activate SNAP tests to save time and improve workflow with the SNAP Pro Analyzer.
  • Count on personalized support, guidance, and tools to advise you beyond test results.

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New customer? Learn about our free SNAP 4Dx Plus Test trial.

Screen for 7 vector-borne pathogens


Heartworm disease has been found in all Canadian provinces as well as the Northwest Territories and the Yukon. Screen annually to find even low worm-burden patients sooner and more often, and begin treatment when you can do the most good.

Lyme disease

More accurately identify Lyme disease in clinically and subclinically infected dogs with proven C6 ELISA technology. The SNAP 4Dx Plus Test identifies antibodies that are produced only as a result of a Borrelia burgdorferi infection.


Detection of antibodies to Ehrlichia canis, Ehrlichia ewingii, or Ehrlichia chaffeensis indicates tick exposure and the transmission of infectious agents. Additional testing is recommended in these patients to determine if there is an active infection. Controlling the infection early is the best way to protect your patients from chronic disease.


Annually screen dogs to identify exposure to Anaplasma phagocytophilum and Anaplasma platys. Early detection improves patient prognosis and reinforces the importance of tick control.

Clinical decision support screen in VetConnect PLUS software

You receive a positive test result. Now what?

For any positive result, IDEXX DecisionIQ arms you with clear next-step considerations on how to further test your patient and develop your treatment plan. It also proactively serves up client-friendly communications, medical algorithms, and differentials so they are all in one place and free of charge within VetConnect PLUS.

IDEXX Reference Laboratories

In the event of a positive result, you’re never on your own. Our IDEXX Reference Laboratories programs will help you attain a comprehensive diagnosis with heartworm confirmatory testing at no additional cost, our Lyme Quant C6 Test, and follow-up testing.

  • Heartworm confirmatory testing: IDEXX offers complimentary heartworm antigen testing, so keeping up with industry recommendations won’t add any additional costs.
  • Lyme Quant C6 Test: Is that positive Lyme result an active or historical infection? The Lyme Quant C6 Test helps you answer questions like this so you can quantify, manage, and monitor Lyme-infected dogs.
  • Ongoing support: As always, you can count on a team of veterinary specialists and support members for personalized follow-up and expertise.
Person pipetting into a SNAP test.

More than just a test

The SNAP 4Dx Plus Test includes resources, services, and ongoing education to help you protect pets and their families.
Canada CAPC map.
Diagnostic decision support resources

Support your decision-making process with disease algorithms, CAPC prevalence maps, next-step considerations, and more.

Visit resource page

SNAP 4Dx client communications handout.
Client communications with VetConnect PLUS

Send thoughtful messages and save time with client communications that celebrate negative test results, help decrease anxiety about positive results, offer summaries of next steps, and explain the benefits of screening and more.

Sign in to VetConnect PLUS

IDEXX Learning Center course up on a tablet.
Ongoing education

Listen to a round table discussion by medical experts and veterinarians on canine vector-borne disease, including diagnosis, disease management, disease prevalence, and the impact on One Health.

Visit IDEXX Learning Center



One SNAP can change everything

Watch how SNAP technology delivers superior diagnostic accuracy—and see what you may sacrifice when you use a test without it.

White papers and peer-reviewed literature

IDEXX 4Dx Plus Test: Expanded capability, same great performance

​ Accuracy of the SNAP 4Dx Plus Test ​

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Exposure to tick-borne diseases increases risk of developing chronic kidney disease. Read the study.
Graphic showing exposure to tick-borne disease increases risk of developing chronic kidney disease
Five parasites.
Screen for 9 diseases and infections carried by ticks, mosquitoes, and worms using IDEXX-innovative tests

Learn about comprehensive parasite screening with IDEXX Preventive Care


Contact us

We’re here to help you 24 hours a day, 7 days a week.

Customer Service: 1-800-248-2483

IDEXX Test Promise

If an IDEXX test does not perform as promised, just call us and we’ll credit your IDEXX Points account with 100% of the test’s value.

Order tests & supplies

Learn more about ordering direct from IDEXX and order your in-house tests and supplies today.

SNAP 4Dx Plus Test Part Numbers

  • 5 tests : 99-0011514
  • 15 tests: 99-0011515
  • 30 tests: 99-0011516

Learn more about the SNAP 4Dx Plus Test

A representative will help you every step of the way.

SNAP Pro Analyzer sold seperately.


  1. Goldstein RE, Eberts MD, Beall MJ, Thatcher B, Chandrashekar R, Alleman AR. Performance comparison of SNAP 4Dx Plus and AccuPlex4 for the detection of antibodies to Borrelia burgdorferi and Anaplasma phagocytophilum. Intern J Appl Res Vet Med. 2014;12(2):141–147.
  2. Eberts MD. Performance of SNAP 4Dx Plus and AccuPlex4 in dogs with different heartworm burdens. Intern J Appl Res Vet Med. 2013;11(1):7–9.
  3. Liu J, Drexel J, Andrews B, Eberts M, Breitschwerdt E, Chandrashekar R. Comparative evaluation of 2 in-clinic assays for vector-borne disease testing in dogs. Top Companion Anim Med. 2018;33(4):114–118. doi:10.1053/jtcam.2018.09.003