Heartworm Medication Near Trafalgar Square, TX

Recognizing When Your Dog Needs a Heartworm Test

Every dog needs a heartworm test before starting or renewing heartworm medication. That's the rule, not the exception. Giving heartworm medication to a dog who already has an active infection can cause a serious reaction, so the test always comes first.

A few situations call for testing, no way around it: your dog is due for their annual wellness exam, you're starting heartworm medication for the first time, a dose was missed or given more than a couple weeks late, you brought home a new dog without verified testing records, or your dog is switching to a different prevention product.

Deciding on the Right Prevention Product

Chewable, topical, or a six-month injection. That's the real choice you're making, and it's less about brand and more about your pet's life. A dog who spends weekends at the lake needs something that won't wash off. A cat who's a master at dodging pills needs a topical instead. We ask about your pet's routine before we ever talk product.

Age and weight matter too. Puppies start on a different track than adult dogs, and dosing is tied to weight, not guesswork, so we weigh your pet at every visit. Missed doses are the other piece of this. Life gets busy, and gaps are exactly when mosquitoes get their shot in.

When a Test or New Plan May Not Be Needed

Not every pet walking through our doors needs a fresh test or a brand new plan. If your puppy is younger than 7 months old, the American Heartworm Society doesn't require a blood test before starting prevention, since infection can't be detected that early.

Already had a test done in the last few months with no missed doses since? You probably don't need another one right now. Where you do need a test: any missed dose, any gap longer than a month or two, or if it's just been a while since your pet's last one.

The Testing Visit and Where to Go

We start with a quick chat about your dog's history and any symptoms, then a small blood sample from the leg. Results usually come back the same visit through our in-house lab. If it's negative, which it is for most dogs who've stayed on schedule, we get you set up with medication before you leave.

One missed dose isn't the end of the world, but a pattern of missed doses is a different story. Our North Dallas care center at 17062 Preston Rd Suite 104 runs same-visit heartworm testing for families near Trafalgar Square.