RDA Assisting with Administration of Anesthesia and Sedation 2

Question 1

Which local anesthetic agent is classified as an amide and is the most commonly used in dentistry?

Accepted Answer

Lidocaine

Answer

Lidocaine (Xylocaine) is an amide-type local anesthetic and is the most widely used local anesthetic in dentistry, often combined with epinephrine as a vasoconstrictor.

Question 2

What is the recommended maximum dose of epinephrine in local anesthetic for a patient with cardiovascular disease?

Accepted Answer

0.04 mg

Answer

For patients with significant cardiovascular disease, the maximum dose of epinephrine is 0.04 mg (two cartridges of 1:100,000 epinephrine) per appointment.

Question 3

Which route of administration is used for nitrous oxide/oxygen sedation?

Accepted Answer

Inhalation

Answer

Nitrous oxide/oxygen conscious sedation is administered via inhalation through a nasal hood, making it an inhalation route of administration.

Question 4

What should the RDA do FIRST if a patient develops syncope (fainting) during a procedure?

Accepted Answer

Place patient in Trendelenburg (supine with feet elevated) position

Answer

For syncope, the first step is to place the patient in the Trendelenburg position (supine with feet elevated above the heart) to restore blood flow to the brain.

Question 5

Which of the following is a contraindication to the use of nitrous oxide sedation?

Accepted Answer

Obstructive nasal passages

Answer

Obstructive nasal passages (e.g., severe nasal congestion, deviated septum) are a contraindication to nitrous oxide because the gas is delivered via nasal inhalation.

(RDA) Registered Dental Assistant Practice Test

(RDA) Registered Dental Assistant Practice Test

RDA Assisting with Administration of Anesthesia and Sedation 2