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B needle length increases c needle gauge increases d

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B. needle length increases.C. needle gauge increases.D. All of the above.Answer: BWhich of the following anatomic structures is/are potentially affected by administration of local anesthesia?A. Internal maxillary artery.B. Pterygoid plexus of veins.C. Posterior superior alveolar nerve.D. All of the above.Answer: BThe lingual nerve contributes sensory fibers to the1. tongue.2. lingual surface of the mandible.3. floor of the mouth.4. mandibular posterior teeth.A. (1) (2) (3)B. (1) and (3)C. (2) and (4)D. (4) onlyE. All of the above.Answer: AReference: Head and Neck Anatomy for Dental Medicine, p.81The left infraorbital nerve block anaesthetizesA. all maxillary teeth on the left side.B. the maxillary premolar on the left side, canine and incisor teeth.C. the left maxillary canine and incisor teeth only.D. the entire left maxillary sinus.E. the entire left naso-lacrimal duct.Answer:BIncreased bleeding is associated with a prolonged administration of1. Warfarin (Coumadin).2. codeine.3. acetylsalicylic acid.4. acetaminophen.A. (1) (2) (3)B. (1) and (3)C. (2) and (4)D. (4) onlyE. All of the above.Answer: BImmediately following a posterior superior alveolar block injection, the patient's face becomes quickly andvisibly swollen. The immediate treatment should be toA. use pressure followed by cold packs over the swelling.B. use hot packs over the swelling.
C. refer the patient to a hospital.D. administer 100mg hydrocortisone intravenously.E. administer diphenhydramine hydrochloride (Benadryl) 50mg intravenously.Answer: AThe most common complication of a venipuncture isA. syncope.B. hematoma.C. thrombophlebitis.D. embolus.Answer: CThe first sensation lost after administration of a local anesthetic isA. pain.B. touch.C. pressure.D. proprioception.Answer: AReference: NDBE II Kaplan, p.145Which of the following local anesthetics is subject to inactivation by plasma esterases?A. Procaine.B. Lidocaine.C. Prilocaine.D. Mepivacaine.E. Bupivacaine.Answer: AReference: Kaplan NDBE II, p.144Antihistamines act byA. increasing the action of histaminase.B. altering the formation of histamine.C. blocking the actions of histamine by competitive inhibition.D. interfering with the degradation of histamine.Answer: CReference: Dr. Cook lecture on peptic ulcers, slide 31Protracted use of tetracycline may produce symptoms of vitamin K deficiency because tetracyclineA. is detoxified by the liver.B. combines chemically with vitamin K.C. inhibits growth of intestinal bacteria.D. interferes with the conversion of prothrombin to thrombin.Answer: CReference: Burket’s Oral Medicine, p.421The most important therapeutic measure to be taken in a case of barbiturate poisoning is toA. alkalinize the urine.B. aspirate stomach contents.C. administer a CNS stimulant.D. assure adequate respiration.E. administer osmotic diuretics.

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Test, Periodontitis, A Temporal, Contemporary Orthodontics, C Frontal, C Hypothyroidism

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