Heartworm Testing

Heartworms are life-threatening parasites that may infect your pet. They can affect cats and dogs but are more commonly seen in dogs. Due to the severity of heartworm disease our hospital encourages regular testing for dogs so the illness can be treated early.

What is heartworm disease in pets?

Heartworm disease is contracted through mosquito bites. Female mosquitoes carry larvae in their gut for up to 30 days then pass them on to dogs. The larvae enter the bloodstream and move to the heart and blood vessels where they mature to adults. They reproduce and create more offspring, heartworms can grow up to a foot-long. Adult heartworms can live up to five years.

How can I tell if my pet has heartworms?

Pets seldom show signs of heartworms until the disease is advanced. The signs you see are sometimes mild but, if left undiagnosed and untreated, could be deadly. Here are some signs to look out for:

  • Fatigue
  • Loss of appetite
  • Reluctant to exercise
  • Heart failure

    At the sight of any of these symptoms have a veterinarian examine your loyal companion. To schedule an appointment for your pet call 506.455.1700.

    How are heartworms diagnosed in my pet?

    Heartworms are diagnosed through blood testing. We collect a sample of blood from your pet and examine it for the presence of heartworm proteins. Our team will also run tests to check the heart, chest, kidney and liver as these organs are usually affected by heartworms.

    What is the best way to protect my pet from heartworms?

    To protect your pet from heartworms they need to be on preventative treatment from a young age. Along with the medication, they need to be tested regularly as missed or late doses can leave them susceptible to the disease. Preventative treatments are in the form of tablets and topical treatments.

  • Last updated: October 20, 2021

    Dear Clients,

    With recent changes to restrictions on businesses, we have made some important updates to our operating policies.


    This includes vaccines, wellness exams, blood work, heartworm testing, spays and neuters, dental services, and more!


  • We are currently allowing 1 client per pet appointment to enter the hospital.
  • For everyone's safety, we have social distancing protocols in place and all staff and clients must wear a mask.
  • All exam rooms are disinfected between each appointment.
  • Continue the use of credit cards as the preferred payment method. Cash will be accepted if necessary.
  • If you need to purchase food, please order online or drop by the clinic during regular hours. Shipping is free for online orders over $100 and only $5 for orders over $50.
  • For prescription refills, complete the online refill order form or text 506.455.1700. Ordering online is the fastest and easiest way to obtain a medication refill.

    Clients must confirm their appointments 24 hours before their scheduled time slot at the latest. We will cancel appointments of clients who do not confirm and give the appointment to waitlisted patients.


    We reserve the right to refuse service to clients who verbally, emotionally, or physically harm any of our teammates.


    We are OPEN with the following hours:
    Monday to Friday: 7:30 am - 6:30 pm
    Saturday to Sunday: CLOSED

    Please note that after 6:00pm, our phone lines will be answered by our triage service, Guardian Vets.

    Thank you for your patience and understanding and we look forward to seeing you and your furry family members again!

    - Your dedicated team at Fredericton Animal Hospital