1. Pulling the tissue taut before needle insertion helps all of the following EXCEPT one. Which one is the EXCEPTION?

A. Visibility

B. Ease of needle insertion

C. Ease of needle penetration through the tissue

D. Burning sensation felt by the patient

2. What is the minimum number of times a clinician should aspirate before administering the anesthetic solution?

A. Once

B. Twice

C. Zero, only during nerve blocks

D. Four