do I prepare for the test?
- You will need to sign a consent form giving your doctor permission
to perform this test. Because you will probably receive some
pain medicines or anti-anxiety medications that can make you
drowsy, you will need to arrange a ride home.
Tell your doctor if you have ever had an allergic reaction to
lidocaine or the numbing medicine used at the dentist's office.
Also talk with your doctor before the test if you are taking
insulin, or if you take aspirin, nonsteroidal anti-inflammatory
drugs, or other medicines that affect blood clotting. It may
be necessary to stop or adjust the dose of these medicines before
your test. Most people need to have a blood test done some time
before the procedure to make sure they are not at high risk for
Usually you will be told not to eat anything after midnight on
the night before the test. This is in case you experience nausea
from the anti-anxiety medicines.