Each test submitted is done so with the optimum report in mind. For this reason, PetLife uses a variety of reference labs to evaluate diagnostic samples. In some cases, results may be available as early as the next business day (Superchem, CBC, urinalysis). However, more advanced testing may be run at the lab on specific days (ACTH stimulation tests) or require special processing prior to evaluating the sample (histopathology samples of bone). For this reason, we ask that you allow one week for test results to be returned. Once the results are received, your veterinarian will contact you to review the results and treatment options.