A "Negative" result has the following standard definition. Based on current transmissible spongiform encephalopathy (TSE) research and pathogenesis studies, it is possible to have protease resistant prion protein present at levels below the sensitivity of this test. It should also be noted that protease resistant prion protein may be present in tissues other than those that were examined. This analysis was performed and validated using scrapie positive brain or lymph node tissues as controls.

CWD results take about 1 month after samples are received when the lab is inundated with sample submissions. On the flipside, it is highly recommended that venison be frozen for at least 30 days before cooking or dehydrating to help kill any parasites that may be present. When the lab is not as busy during the start of deer season, CWD testing typically takes 2 weeks.