← DENT 601 Exam 1 Test
5 Written Questions
5 Matching Questions
- What do propofol and ketamine provide as IV anesthetics?
- What is the mechanism of action of NSAIDs?
- What organ develops toxicity from Tylenol overdose?
- Where is an intraperitoneal injection?
- What are the two parts of the brain most affected by anesthetics?
- a Gut sack
- b Thalamus and ARAS
- c Propofol - sedation; Katamine - sedation and analgesia
- d Liver
- e inhibit cyclooxygenase so that TXA2, PGI2, PGE2 are not made - prevent pain, inflammation and fever.
5 Multiple Choice Questions
- Pain is blocked earlier than all other things
- They all affect GABA channels except ketamine (dissociates thalamus from limbic system)
- o Onset slightly slower than lidocaine (2-4 mins).
o Without epi - useful in patients for who epi is a problem
o Use rarely indicated in children
o Toxicity less than lidocaine - rapidly biotransformed
- sensitize (hyperalgesia) nociceptors to histamine and bradykinin (are not painful by themselves), facilitate histamine and bradykinin to produce inflammatory edema.
- relieve itching, pain, soreness from infection, etc
5 True/False Questions
What are the percent dosages of N2O for dental analgesia, amnesia, unconsciousness, and GA? → - Mu (morphine is agonist of it) - this is the receptor we are mostly concerned with
What is the desired endpoint of sedation? → Eyes closed or nearly closed, patient not spontaneously moving but can respond to verbal commands
What is the dental significance of aspirin? → Prolongs bleeding time and can increase risk of post-operative bleeding.
When do we insert a needle all the way to the hub? → Never
What are benzodiazepine cardio effects? → None