Heartworm Testing in Altamonte Springs, FL, From Your Local Vet

Petfolk Veterinary & Urgent Care - Altamonte Springs is a vet in Altamonte Springs, FL, that tests dogs for heartworm with a small blood sample, usually once a year. Many results are ready during the same visit from the clinic's in-house lab.

A yearly test matters even for dogs on prevention. Doses get missed, chews get spit out, and the test is how you know your dog is still clear.

Call (407) 707-8525, book online or walk in for a heartworm test.

Why test a dog that's already on prevention?

No preventive is perfect when real life gets in the way. A dog might vomit a chew, a month gets skipped, or a dose is given late. The yearly test catches an infection early, when treatment is simpler. It is also required before a vet can keep prescribing prevention, because giving some preventives to a dog with adult heartworms can cause a reaction.

Across Petfolk, the in-house heartworm and tick-borne disease test is the single most-ordered in-house lab test (Oct 1, 2025 to Sep 30, 2026).

What does the test check for?

At Petfolk Altamonte Springs, the common in-house test uses a few drops of blood to look for:

• Heartworm proteins from adult female worms.

• Exposure to tick-borne diseases such as Lyme disease, ehrlichiosis and anaplasmosis, in the same sample.

Tick results are a useful bonus for dogs who walk the wooded trails at Spring Hammock Preserve or Big Tree Park. A positive tick result doesn't always mean your dog is sick; the vet will explain what it means for your dog.

How often should my dog be tested?

• Puppies under 7 months: start prevention without a test.

• Dogs 7 months and older starting prevention: test first, then again about 6 months later, then yearly.

• Adult dogs on prevention: once a year, usually at the wellness exam.

• After a missed dose or a switch in products: the vet may suggest a test about 6 months later.

Cats are tested differently and less often, because their infections are harder to detect. If your cat coughs or breathes fast, the vet may suggest blood tests or x-rays.

What does a heartworm test cost?

The test is priced separately and is often done at a wellness exam, which starts at $99 at Petfolk Altamonte Springs, or is included with PetfolkCare, which starts at $199 a year. You'll get an estimate before any test or treatment. The final bill can differ if the plan changes during the visit.

How the visit goes

The blood draw takes a minute. Fear Free handling is standard at every Petfolk clinic, so the team uses treats and gentle holds, and your dog stays in a private room with you. Most results come back while you are still there, and the vet goes over them with you before you head home. If your dog is due for prevention, you can pick up the next supply from the on-site pharmacy. Bring the name of the product your dog takes now, and the date of the last dose, so the vet can read the result in context and spot any gap in coverage.

If the test is positive

A positive result is serious but treatable. The vet usually confirms it with a second test, then checks the heart and lungs, often with x-rays, before starting a treatment plan. Exercise is limited during treatment. If a dog with heartworm suddenly collapses, coughs up blood or can't catch its breath, go to a 24-hour emergency hospital such as VEG Winter Park on W Fairbanks Ave.

Book a heartworm test

Petfolk Veterinary & Urgent Care - Altamonte Springs is at 999 N State Rd 434, Suite 1010, Altamonte Springs, FL 32714. Call (407) 707-8525. Next step: heartworm prevention in Altamonte Springs.

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