Mepivacaine plain solutions may be useful for reinjection following the use of lidocaine 2% with epinephrine for all of the following reasons except
A) There is 50% more drug per volume.
B) It raises the pH at the deposition site.
C) Duration is enhanced by the presence of previously injected vasoconstrictor.
D) It is a strong vasodilator.

Question

Quizplus · Accepted Answer

Mepivacaine is not a strong vasodilator; in fact, it has a neutral effect on blood vessels, unlike some other local anesthetics that can cause vasodilation. The presence of a vasoconstrictor from a previously injected solution (like lidocaine with epinephrine) can prolong the effect of subsequent injections without the need for additional vasoconstrictors.

Mepivacaine Plain Solutions May Be Useful for Reinjection Following the Use