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StuRDH LA Mock Exa
Local Anesthetic Mock Exam
| Question | Answer |
|---|---|
| Which Injection is needed to anesthetize the palatal tissues around the LEFT MAXILLARY MOLAR - A- Nasopalatine Nerve Block B-Greater Palatine Nerve Block C- Posterior Superior Alveolar Nerve Block D.- Buccal Nerve Block | B - Greater Palatine Nerve Block |
| Local Anesthetics Mainly: A: decrease the rate of depolarization B: Lower the threshold potential C: Accelerate the rate of depolarization D: All of the Above | A: Decrease the rate of depolarization |
| Which of the following anesthetics is contraindicated for patients with COPD? A: Lidocaine B: Bupivacaine C: Prilocaine D: Mepivacaine | C: Prilocaine |
| Which of the following injections is needed to anesthetize the MAXILLARY POSTERIOR TEETH? A: Inferior Alveolar Nerve Block B: Posterior Superior Alveolar Nerve Block C: Middle Superior Alveolar Nerve Block D: Greater Palatine Nerve Block | B: Posterior Superior Alveolar Nerve Block |
| During aspiration, you see blood rapidly coming through the dental cartridge. what should the next step be? A: Turn the syringe 45 degrees and aspirate again B: Pull Back the Needle and re-insert it C: Remove the needle and replace the cartridge | C: remove the needle and replace the cartridge |
| Which type of injections most efficiently provides hemostasis? A: Nerve Block B: Field Block C: Infiltration D: All of the above | C: Infiltration |
| A hematoma quickly appeared after a PSA nerve block. Which of the following was the cause? A: The solution was deposited into a blood vessel B: The Needle penetrated the parotid gland C: The needle penetrated the pterygoid plexus of veins D: pt=weak | C: The needle penetrated the pterygoid plexus of veins |
| At the end of the dental appt, you noticed that one side of the pts face is "drooping". What could have caused this? A: LA was deposited into parotid gland B: Muscle spasms occurred from opening C: Needle nicked a blood vessel D: Pt is having syncope | A: LA was deposited into the parotid gland |
| Which of the following provides sensory innervation to the soft palate? A: Lesser palatine nerve B: Greater palatine nerve C: Nasopalatine nerve D: Posterior Superior Alveolar Nerve | A: Lesser palatine nerve innervates the soft palate and exits through lesser palatine foramina |
| For the administration of an inferior alveolar nerve block, how much of the long needle should penetrate the tissues? A: 1/2 B: 1/4 C: 2/3 D. Full length | C: 2/3 2/3 - 3/4 of the long needle (30-35mm) |
| What is the reasoning behind taking blood pressure before administering local anesthesia? A: To establish a baseline B: To avoid malpractice C: To diagnose hypertension D: To monitor anxiety | A: To establish a baseline |
| What happens during depolarization phase of a nerve cell? A:Sodium ions exit the nerve membrane B:Sodium ions enter the nerve membrane C:Both sodium and potassium ions enter the nerve membrane D:Both sodium and potassium ions exit the nerve membrane | B:Sodium ions enter the nerve membrane |
| What is the needle insertion site for the bucal nerve block? A:Mucogingival junction around the mand. Molars B:Mubuccal fold around the mand. 1st molar C:Buccal mucosa around the mand. Last molar D:Buccal mucosa around the mand. Premolars | C: Buccal mucosa around the mandibular last molar |
| Which of the following foramen is the opening for the mandibular division of the trigéminal nerve? A:Foramen rotundum B:Foramen Ovale C:Foramen Spinosum D:Foramen magnum | B:Foramen Ovale |
| Which of the following foramen is the opening for the maxillary division of the trigéminal nerve? A:Foramen rotundum B:Foramen Ovale C:Foramen Spinosum D:Foramen magnum | A: Foramen rotundum |
| A vasoconstrictor can do all of the following except: A:Increase the duration of anesthesia B:Decrease the bleeding at site C:Increase the absorption rate of the anesthetic into the vascular system D:Decrease the likelihood of adverse rxns | C: Increase the absorption rate of the anesthetic into the vascular system |
| A Periodontal surgery is scheduled around the 2nd max right molar. Which injection is indicated? A:PSA only B:PSA and MSA C:GP and IA D:PSA and GP | D: PSA nerve block and GP nerve block |
| Local anesthetic molecules bind to which part of the nerve? A: Cell body B: Axoplasm C: Axolemma D: Dendrites | C: Axolemma Outer membrane |
| The pt is currently taking Elavil. What should be avoided when administering LA? A:Avoid topical anesthetic B:Avoid Levonordefrin C:Avoid Local Anesthesia D:Avoid Amides | B: Avoid Levonordefrin |
| If a local anesthetic is a “relative contraindication” this means that: A: It should never be used B:It will cause an allergy C:Caustion should be used D:It will most likely cause a reaction | C: Caution should be used |
| If epinephrine is injected into the cardiovascular system it will A:Decrease the blood pressure B:Increase the blood pressure C:Epinephrine does not affect the blood pressure D:Make the patient spontaneously combust | B: Increase the blood pressure |
| Which of the following terms refers to the decrease response to a drug after its repeated usage? A:Tachyphylaxis B:Drug intolerance C:Tachypnea D:Hypersensitivity | A:Tachyphylaxis |
| The patient experienced a sharp pain when the needle was being inserted. This is most likely related to the: A:Low pH of the anesthetic solution B:Rapid Injection C:Needle contacting the nerve sheath D:High temperature of the solution | C: Needle contacting the nerve sheath |
| Which of the following is FALSE regarding a Buccal nerve block? A:The needle is inserted on the Buccal mucosa B:The needle insertion depth is 10mm C:It anesthetizes the Buccal mucous membrane of the molars D: 0.2mL of the LA solution is needed | B: The needle insertion depth is 10mm |
| Which of the following conditions is not a contraindication for epinephrine use? A:Hypertension B:Hyperthyroidism C:Methemoglobinemia D:Angina | C: Methemoglobinemia |
| If a long needle is used for a PSA which of the following is the proper penetration depth? A: 1/4 of the needle B: 1/2 of the needle C: 3/4 of the needle D: Entire length of the needle | B: 1/2 of the needle |
| Infiltration is contraindicated when: A: Area is inflamed B: Hemostatis is needed C: Procedure is confined to two adjacent teeth D: Treating a child | A: The area is inflamed |
| Which of the following conditions may happen if a needle did not contact the bone when administering an inferior alveolar nerve block? A:Penetration of soft tissue B:Hemorrhage C:Facial nerve paralysis D:Trismus | C: Facial nerve paralysis |
| Which of the following method can best resolve symptoms associated with trismus? A:Cold compressions B:Heat compression with normal eating C:Use of a straw when drinking liquids D:Restriction of the movement of the jaw for a week | B: Heat compression with normal eating |
| The right IA block has not been successful in anesthetizing the central and lateral inscisors on the same side. What could have caused this failure? A:Failure to provide a separate incisive nerve block B:Cross-innernation of nerves C:Improper technique | B: Cross innervation of nerves |
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AlxdroG
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