Local Anesthesia Board Exam 2023-24 | with complete solution

Local Anesthesia Board Exam 2023-24 | with complete solution What causes droopy eyelid? - Anesthesia of the facial nerve, possibly during IA injection into parotid gland You are administering 3 cartridges of 1% lidocaine, each cartridge is 1.7 mL. How much anesthesia are you administering? - 51mg Which nerve is not a branch of the mandibular nerve? - Infraorbital If you are giving 3 carpools of 3% lidocaine and each cartridge contains 1.7 mL, how many milligrams of solution will the patient receive? - 153 mg Innervation of the soft palate? - Lesser palatine nerve If you use a LARGE amount of topical anesthetic, what is the likely outcome? - Diffusion Why does anesthesia fail to work near abscessed tooth? - Infection causes pH to lower in area. The more acidic the area is, the less effective anesthesia will be. Topical anesthesia question... Which one of the following statements is the most accurate? - Benzocaine is not absorbed systemically Location for buccal injection? - Distal and buccal to last molar in buccal tissue If you want hemostasis, what injection is best? - Infiltration If a patient has cirrhosis of the liver, why would you use caution in administering an amide? - Because amides are biotransformed / metabolized in the liver. Most common anesthetic without epinephrine? - Mepivicaine Hematoma will occur when you inject into the pterygoid plexus during what injection? - PSA How do you manage trismus? - Heat and jaw exercises Which anesthetic is not an amide? - Procaine Ongoing numbness of the anterior part of the tongue is caused by which nerve being anesthetized? - Lingual Know the amounts of epinephrine in solutions. - 1:50,000 = .036 1:100,000 = .018 1:200,000 = .009 What is the first sign of anesthesia overdose? - Blood pressure increases, heart rate increases, increase respiration When administering the IA injection, at what point should needle contact bone? - 2/3 or 3/4 of needle If administering 1 mL per minute to patient, what are the most likely effects on the patient? - Few adverse effects - What is the best description of topical anesthetics? - Works on mucous membranes, only 2-3 mm of numbness Name 1 incorrect recapping technique? - 2-handed method If scaling #8, where do you inject? - Mucobuccal fold Why does anesthesia work better in maxilla than in mandibular? - Mandibular bone is more dense. Patient receives electric shock during delivery of anesthesia but no pain upon insertion, what is the most likely cause? - Touched nerve sheath How do local anesthetics