T (Thymus Derived) Lymphocyte Count. Definition. T cells are a type of white blood cells (lymphocytes). They make up part of the immune system. T cells help the body fight diseases or harmful substances. A test can be done to measure the number of T cells in your blood. Thymus derived lymphocyte count; T-lymphocyte count.
The road test generally takes 15 to 20 minutes. 1  If you fail the road test you must wait a minimum of two weeks (14 days) before taking the road test again and must pay another $40 testing fee. 2  Test results are valid for 2 years. If you fail the road test you must wait a minimum of two weeks (14 days) before taking the road test again and must pay another $40 testing fee. 2  Test results are valid for 2 years.
Be at least 16 years old to take the DMV drive test. Must complete 6 hours of Driver Training with a licensed driving instructor and receive a gold certificate of completion (OL 238). Complete 50 hours (10 hours must be done at night) of driving. Your parent/guardian will have to sign your permit. Six months after the 1st day of receiving your permit, you are eligible to take your drive test. Make an appointment for your Behind The Wheel Driving Test at your local DMV.