Heartworm Testing in Fulshear, TX, From Your Local Vet

Petfolk Veterinary & Urgent Care - Fulshear is a vet in Fulshear, TX, that tests dogs for heartworm with a quick blood test run in the clinic's own lab. Most dogs need the test once a year, and before they start or restart prevention.

A heartworm test checks for proteins made by adult female heartworms. It takes a few drops of blood, and results are often ready during the visit.

Call (281) 214-6363, book online or walk in.

Why does my dog need a heartworm test every year?

At Petfolk Fulshear, a yearly test is the safety check that goes with prevention. Doses get missed, dogs spit out pills, and no product is perfect. The test catches an infection early, when treatment is easier.

There is also a safety reason. Giving some preventives to a dog that already has heartworms can cause a serious reaction. So the vet needs a negative test before starting or restarting prevention.

Across Petfolk, the in-house heartworm and tick-borne disease test is the single most-ordered in-house lab test. That shows how routine it is.

Gulf Coast mosquitoes don't take a winter off

Texas ranked first in the nation for heartworm cases in the American Heartworm Society's survey of 2025 testing data. Around Fulshear, rain and standing water after storms keep mosquitoes going for much of the year. Texas A&M's diagnostic lab notes that heavy rain raises mosquito numbers and heartworm risk for dogs and cats.

When should my dog be tested?

Petfolk Fulshear follows a simple schedule:

1. Puppies under about 7 months can usually start prevention without a test, then get tested about six months later.

2. Dogs 7 months and older are tested before they start prevention.

3. Every dog on prevention is tested once a year.

4. After a missed or late dose, the vet may test again in about six months, since it takes time for a test to turn positive.

At our Houston-area clinics, only about 1 in 16 puppy wellness visits include a heartworm test, because most young puppies do not need one yet (Oct 2025 to Sep 2026).

Testing for tick-borne disease at the same time

Many in-house heartworm tests also screen for tick-borne infections, such as ehrlichiosis, Lyme disease and anaplasmosis, from the same blood sample. Texas A&M's Tick App notes that the brown dog tick, which lives around homes and kennels, can spread the germ that causes ehrlichiosis. The vet will tell you which test your dog gets.

Testing a sick dog

Heartworm tests are not only for checkups. At our Houston-area clinics, about 1 in 12 sick-dog visits include a heartworm test (Oct 2025 to Sep 2026), often for a cough, low energy or weight loss.

Fear Free handling makes the blood draw easy. Most dogs get a treat and barely notice the needle.

Made my sweet girl feel safe and calm

Olivia M., Google review

What if the test is positive?

A positive test at Petfolk Fulshear is usually checked with a second test before any plan is made. If heartworm is confirmed, the vet will explain the next steps, which often include x-rays, exercise limits and a treatment plan over several months. Keep your dog calm and quiet, because exercise can make the disease worse.

What does a heartworm test cost?

The test at Petfolk Fulshear is usually done during a wellness exam, which starts at $99, and the test is priced separately. You'll get an estimate before any test or treatment. The final bill can differ if the plan changes during the visit.

Warning signs

Call Petfolk Fulshear if your dog has a new cough or tires quickly. Go to a 24-hour emergency hospital, such as VEG Katy, for collapse, pale gums or labored breathing.

Book the yearly test

Petfolk Veterinary & Urgent Care - Fulshear is at 29615 Jordan Crossing Blvd, Suite 240, Katy, TX 77494. Pair the test with heartworm prevention at the same visit.

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