Which statement correctly identifies why epinephrine is used with ...

[big1devin]

Which statement correctly identifies why epinephrine is used with local anesthetic agents?
 
  1. Epinephrine use produces higher analgesia levels.
  2. Epinephrine use prolongs surgical time.
  3. Epinephrine use lowers the risk of bacterial infection.
  4. Epinephrine use reduces the occurrence of hypertension.

Question 2

Which of the following local anesthetic agents would be considered first due to its lower rate of adverse effects?
 
  1. Tetracaine (Pontocaine)
  2. Procaine (Novocain)
  3. Lidocaine (Xylocaine)
  4. Chloroprocaine (Nesacaine)

[cloudre37]

Answer to Question 1

Correct Answer: 2
Rationale: Epinephrine causes vasoconstriction, prolonging the time the anesthetic is present, and therefore prolongs procedure time. Epinephrine would cause hypertension, not prevent it. Epinephrine is not antibacterial and is not an analgesic.

Answer to Question 2

Correct Answer: 3
Rationale: All except lidocaine are classified as esthers. Lidocaine is classified as an amide, and amides produce fewer side effects than do esthers.

[big1devin]

Gracias!

[tkempin]

Thanks for the timely response, appreciate it