WREB Local Anesthesia Written question n answers graded A+ 2023

WREB Local Anesthesia WrittenWhat foramen does the V3 branch of the trigeminal nerve exit? - correct answer Foramen Ovale When benzocaine topical is left on for over 2 mins, what will happen to the tissue? - correct answer Tissue sloughing What is the purpose of sodium bisulfite? - correct answer Preservative What should you do if your patient is hyperventilating? - correct answer Breathe into cupped hands What is the purpose of administering oxygen after giving a patient nitrous oxide? - correct answer Decrease recovery time What does the mental nerve anesthetize? - correct answer facial gingival from the premolars to the central incisors A patient has a history of type I diabetes and angina. They lose consciousness. What treatment options should you use? - correct answer sugar/nitro glycerin How much vasoconstrictor can you give a cardiac patient? - correct answer .04 mg Which local anesthetic causes the most vasoconstriction? - correct answer Prilocaine You have a patient with severe trismus, pain and cannot open their mouth normally. Which injection should be used to do a right mandibular quadrant? - correct answer Vazaroni-Akinosi You have contacted bone during R-PSA. Your site of penetration was too: - correct answer Medial What injection is best used for hemostasis? - correct answer Infiltration What is the site of penetration for a R-ASA? - correct answer Height of the mucobuccal fold medial to the eminence of the right canine What is the most common adverse effect of local anesthetic? - correct answer Syncope Immediately after giving a patient 2% lidocaine w/ 1:100k epi they experience sharp pain on their lect side traveling down their arm and up their face. It subsides 3-5 mins later. What is it? - correct answer Angina pectoris Local anesthetic is not as effective in lower pH environment because - correct answer the base ion cannot be liberated from the anesthetic solution A patient is allergic to sulfites. Which anesthetic would you NOT use on this patient? - correct answer lidocaine 2% 1:100k epi Which agent causes the pH of the local anesthetic to be lower? - correct answer sodium bisulfite A sign of an allergy to local anesthetic is: - correct answer redness/itching After administering anesthetic, the hygienist notes a faint bluish mark next to the injection site and also on the skin. The most likely cause of this is: - correct answer hygienist slightly tore a blood vessel (HEMATOMA) If your patient has a bad liver, which type of anesthetic should be used? - correct answer prilocaine or procaine What is the contraindication for severe hypothyroidism? - correct answer High concentration of vaso What part of the nerve deals with initiation of impulses? - correct answer Nerve membrane