Question

Local anesthesia given in preparation for endo treatments can sometimes fail? What could be the reason?

a. excessive bleeding at the site
b. patient is anxious
c. patient is experiencing overdose
d. the pH of the tissue has been lowered

Answer 1

Local anesthesia given in preparation for endo treatments can sometimes fail due to excessive bleeding at the site, patient anxiety, or nervous tension.

Step-by-step explanation:

There are several reasons why local anesthesia given in preparation for endo treatments can sometimes fail. One possible reason is excessive bleeding at the site, as blood can dilute the anesthesia and prevent it from having its desired effect. Another reason could be that the patient is anxious, as stress and anxiety can increase pain perception and make the anesthesia less effective. Additionally, if the patient is experiencing a state of nervous tension, known as nervous glycosuria, it can interfere with the effectiveness of the anesthesia.