I am a retired former medical director with Quest Diagnostics. Depending upon which regional laboratory that performs the test, the usual turn around time (TAT) for test performance and results reporting to your health care provider who ordered the test is 24-48 hrs depending upon the integrity of the integrity/quality of the sample submitted for analysis and the/ integration of results reporting with the electronic health record platform used by the practice/health care system. You may also access your test results more rapidly by establishing a free MyQuest personal account. Your results are generally reported as soon as they are available.