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.
To take your driving test, you will need to: Make a driving test Appointment (Driving tests are not given without an appointment.). You may call 1-800-777-0133 between the hours of 8 a.m. and 5 p.m. Monday-Friday, to make a driving test appointment.Provide proof of financial responsibility.fter you have held your driving permit for 5 months, and you feel ready to take the behind the wheel driving test, begin calling the California DMV for a schedule for your driving test. The California DMV computers only schedule 30 days in advance, and they tend to fill up the time slots early, so start early.