VtMapleGal":2wmzsjmw said:
If they are on an ivomec type preventative (heartgaurd) they should be tested yearly, because it can be deadly. If they are on revolution they do not need to be tested every year, as it is not deadly if they have heartworm. It will not kill adult stages. At the clinic where i work we have people whom chose not to have the test. We just mark on thier charts owner denied hw test and risk were told to the owner. It covers us.
This has been proven Untrue... What do they TREAT Heartworm with, when the dog is positive... Ivermectin injectable. Dog stays in clinic for observation, just in case.
If your dog is ON Ivermectin preventative year-round, you can use your own comfort level, and decline the test. The TEST is not deadly, it's just a blood draw. Money maker for the vets, started way back when they first started offering HW preventative, as some dogs were testing neg at first, then on preventative for the 6 months recommended on the package, summer and fall are longer than expected, dog gets infected in October, then is positive next spring. Dogs on meds all year Should be neg.in theory. The Meds don't PREVENT the dog from getting heartworms, it KILLS worms already there. The Fear factor is, if you dog hasn't been treated, you treat them, meds kill off a bunch of worms, your dog MIGHT get an artery blocked, and then die. Monthly treatment prevents a mass infestation, by killing off the smaller numbers that accumulate, each month. It takes a couple months for the worms to be big enough to show up on a blood test, that's how you can get a negative result, when they have them anyways.
The real pisser is, most collie type dogs are very sensitive to ivermectin,(Heartgard-says it right on the package) and can have seizures. That's where the newer types of meds came from.
Long story short, unless you have a collie,(incl. borders, shelties, beardies, etc) it's a good idea to go each month, all year. If you have a good relationship with your vet, talk to him or her about the yearly test, discuss the necessity of it IF your dog is on preventative all year. If you only go to Low-cost clinics for the bare minimum, THEY'RE the ones that are usually pushing the tests... more $$$.
Oh, BTW, Most vets recommend S.D. food, because Hill's pays their tuition thru vet school, and they are REQUIRED to sell it 'till their loans are paid off. Most of them, "Off the Record" will tell you it's Crap food. P.M. me if you want names and #'s of who told me this!
AND....BACK to the OP's ?, Zodiac makes an awesome spot-on tick repellant, shampoos, sprays etc. They also have a line of stuff safe to put in stock tanks, standing puddles etc. to kill mosquito larvae.