1 A heartworm test will cost you about $48.00 on average, and your vet will be using the exact Elisa testing kit and methods that your vet does.  Depending on how up-to-date your pet is with prior visits, wellness checks, etc. you might spend an additional $90.00 or more quite easily.
http://www.alternativeheartwormcure.com/heartworm_test_cost.html
Dogs that are already on heartworm preventive medication should also be tested periodically. The “prepatent period” for heartworm disease (the amount of time it takes for microfilariae to be produced) is approximately 6 months in a dog. During this time, heartworm tests will be negative even if a dog is actually infected. Therefore, puppies younger than 7 months old are generally not tested for heartworms. Instead, puppies should be started on heartworm preventive medication (usually during their puppy checkup visits) and tested when they are older than 7 months.
http://www.vetstreet.com/care/canine-heartworm-testing
When they took her to the vet she tested heartworm negative, and she has been taking preventative for the past 2 months. When I took her to the vet, she said it was definitely possible for her to have it, even though it did not show up. She will go back in... show more I just adopted a dog from a family who rescued her.
https://answers.yahoo.com/question/index?qid=20070707143410AAqoKX7
1 Just showing up to the vet can run $45.00 dollars or more for an initial look.  A heartworm test will cost you about $48.00 on average, and your vet will be using the exact Elisa testing kit and methods that your vet does.
http://www.alternativeheartwormcure.com/heartworm_test_cost.html
Test at home and mail out! instead of using the veterinarian--and save time and money; 1  Just showing up to the vet can run $45.00 dollars or more for an initial look.  A heartworm test will cost you about $48.00 on average, and your vet will be using the exact Elisa testing kit and methods that your vet does.
http://www.alternativeheartwormcure.com/heartworm_test_cost.html
Last year we had a rescue dog test positive for heartworms. We went through one treatment, and had her re-tested, and she was still positive. She went though a second treatment, we waited, retested her and she was finally negative. It took 12 full months, and just over $1000, but she's healthy now. I'm in Minnesota.
https://answers.yahoo.com/question/index?qid=20070707143410AAqoKX7
1 Heartworm testing is performed to determine if a pet is infected with heartworms (Dirofilaria immitis).  Many veterinarians use a popular test called a “SNAP” test, which can be run in just a few minutes at your veterinarian’s office.
http://www.vetstreet.com/care/canine-heartworm-testing
Steps to take to get your dog heartworm tested right at home; 1  Own the home canine heartworm test kit. 2  Place the drops of blood specimen in the included vial and mail the vial out in the included pre-paid envelope.  Know the results within 5 days via email.
http://www.alternativeheartwormcure.com/heartworm_test_cost.html
Dogs who test positive for heart worm often come up negative after about a year of normal heartworm preventative. The treatment for active heart worm is better than it used to be but it is still very hard on a dog and some don't make it. It generally runs around $400.00 but can vary in different parts of the country.
https://answers.yahoo.com/question/index?qid=20070707143410AAqoKX7
Steps to take to get your dog heartworm tested right at home; 1  Own the home canine heartworm test kit. When it arrives to you, simply gather 2-3 drops of blood from your dog via the enclosed instructions.  Know the results within 5 days via email.
http://www.alternativeheartwormcure.com/heartworm_test_cost.html
how much does it cost for dog to be tested for heartworms
The cost for dog to be tested for heartworms is $48. It cost $48.00 for dog to be tested for heartworms.