Following the initial negative aspiration,the dental hygienist should rotate the barrel of the syringe about 45 degrees and aspirate a second time.This ensures that the needle is not located within a blood vessel and possibly abutting the blood vessel wall,providing a false-negative aspiration.
A) Both statements are true.
B) Both statements are false.
C) The first statement is true;the second statement is false.
D) The first statement is false;the second statement is true.

Question

Quizplus · Accepted Answer

Both statements are true. Rotating the syringe barrel and aspirating again is a technique used to ensure that the needle is not in a blood vessel, which could give a false-negative aspiration if the needle were against the vessel wall.

Following the Initial Negative Aspiration,the Dental Hygienist Should Rotate the Barrel