Just got back a 4 month old pup last month she was given back to me Giardia had about 3 tests done by the vet one day positive one day negitive 38.00 each so i picked up giardi test kit by IDEXX 15 tests 139.00 has anyone ever used them before is was told that they are very good any info?

Yes- with great success- quite a few positives around southern California. Dogs and cats are the "norm" but it can also be used to help diagnose giardia in birds. IDEXX should be able to supply you with the latest and greatest information on which species it works in and what the sensitivity/specificity of the test is.