The pretreatment pulpal and periradicular diagnosis of a tooth begins with
A. taking a cone-beam computed tomography (CBCT) scan of the tooth or teeth in question.
B. cold-testing the tooth or teeth in question.
C. reviewing the patient's medical and dental history,
D. percussing the tooth or teeth in question.

Hopefully I'm not too late, but here you go!

The pretreatment pulpal and periradicular diagnosis of a tooth begins with a review of the patient's medical and dental history. Pretreatment also includes taking a patient's blood pressure, pulse, and temperature (if indicated).

Also know as answer c)

answerechocardiography;