FREE RDA Assisting with Administration of Anesthesia and Sedation Questions and Answers

Question 1

What is the primary purpose of a vasoconstrictor, such as epinephrine, in a local anesthetic solution?

Accepted Answer

To prolong the duration of the anesthetic effect

Answer

To reduce the pain of the injection

Answer

To prevent an allergic reaction

Answer

To buffer the pH of the solution

Question 2

Before injecting local anesthetic, the dentist will aspirate with the syringe. What is the purpose of this action?

Accepted Answer

To ensure the needle is not in a blood vessel

Answer

To confirm the patient is numb

Answer

To spread the anesthetic solution in the tissue

Answer

To check for a blockage in the needle

Question 3

When monitoring a patient receiving nitrous oxide/oxygen sedation, the dental assistant's primary role is to:

Accepted Answer

Observe the patient's responsiveness and vital signs

Answer

Adjust the flow rate of the gases as needed

Answer

Document the procedure after the patient is dismissed

Answer

Select the size of the nasal hood

Question 4

The term for lingering numbness or altered sensation that can sometimes occur after a local anesthetic injection is:

Accepted Answer

Paresthesia

Answer

Anaphylaxis

Answer

Analgesia

Answer

Hematoma

Question 5

In accordance with universal safety standards, what colors are the compressed gas cylinders for oxygen and nitrous oxide, respectively?

Accepted Answer

Green, Blue

Answer

Blue, Green

Answer

Yellow, Blue

Answer

Green, Gray

Question 6

What is the primary function of applying a topical anesthetic before administering a local anesthetic injection?

Accepted Answer

To numb the surface tissue for patient comfort during needle insertion

Answer

To achieve profound, deep anesthesia of the tooth

Answer

To disinfect the injection site

Answer

To act as a vasoconstrictor and reduce bleeding