Chapter 37 Quizs

Avery, a dental assistant, is preparing anesthesia for a patient who needs a procedure on tooth #13. What length needle would Avery select?

• 15/8 inches

• 5/8 inch

• 1 inch

• 2 inches

Olivia, a dentist, is preparing to administer local anesthesia to a patient with a history of certain medical conditions. For which patient history should Olivia choose an anesthetic solution without a vasoconstrictor?

• stable angina.

• recent myocardial infarction.

• controlled hypertension.

• treated or controlled congestive heart failure.

While preparing to administer a local anesthetic, Dr. Hannah wants to ensure that the anesthetic solution is not injected into a blood vessel. What should she do to be certain?

• asks the patient whether the injection is uncomfortable or not.

• always aspirates before depositing any solution.

• uses a periodontal ligament syringe.

• advances the needle until bone is contacted.

Mia is about to have an intraoral radiographic procedure, but she has a strong gag reflex. The dental assistant decides to use a topical anesthetic to help control her gag reflex. What is the most common form of topical anesthetic used in this situation?

• spray

• liquid

• ointment

• patch

Charlotte visits her dentist for a minor procedure and receives a local anesthetic. Hours after the procedure, she notices that the numbness in her mouth has not gone away, even though the effects of the anesthetic should have worn off. The condition Charlotte is experiencing is

• analgesia.

• anesthesia.

• paresthesia.

• electronic anesthesia.

Hannah is preparing to administer a local anesthetic injection to a patient. To provide optimal effectiveness, for how long should she leave the ointment type of topical anesthetic on the site of injection before proceeding?

• 2 to 5 seconds.

• 15 to 30 seconds.

• 2 minutes.

• 3 to 5 minutes.

James visits the dentist with a toothache caused by an infection. The dentist explains that local anesthetic agents are not effective when injected into an area where a tooth or soft tissue is infected because

• increased swelling in tissue dilutes the anesthetic.

• an increase of lymphocytes, in the area to combat the infection, will interfere with the effectiveness of the anesthetic solution by increasing acidity.

• increased blood flow in an area of infection rapidly carries the anesthetic away from the area.

• the infection causes local temperature to rise above the point where local anesthetic is effective.

Maya is about to undergo a minor dental procedure and her dentist decides to use lidocaine as a local anesthetic. To make the numbness last longer, the dentist adds a vasoconstrictor to the lidocaine. Which of the following is the vasoconstrictor added?

• alcohol.

• nitrous oxide.

• epinephrine.

• aspirin.

Elijah, a patient with a medical history that indicates a recent myocardial infarction, needs a local anesthetic for a dental procedure. Which type of local anesthetic would be most appropriate for Elijah?

• lidocaine with 1:100,000 epinephrine.

• lidocaine with 1:50,000 epinephrine.

• mepivacaine with 1:20,000 Neo-Cobefrin.

• Carbocaine plain.

Mia is preparing to give an anesthetic injection for a dental procedure on tooth #19. What size needle should she use?

• 5/8 inch

• 1 inch

• 2 inch

• 1 5/8 inch