Hopefully I'm not too late, but here you go!
Answer: 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)
I think the answer is 10,000,
because 500 mL and 20 is equal to 10,000.
500 x 20 = 10,000
