Exam 2 Drugs - Induction, Opioid Agonists/Antagonists, Multimodal Flashcards
Induction dose for Methohexital (Brevital)?
1.5 mg/kg IV
S isomers of barbiturates are more ___________ than R isomers
Potent
List the Oxybarbiturates
Methohexital
Phenobarbital
Pentobarbital
List the thiobarbiturates
Thiopental
Thiamylal
What is the dose for Thiopental?
4 mg/kg IV
If a continuous infusion of Brevital is given there can be post-op _______________ in 1 out of 3 patients
Seizure activity
If given per rectum, what is the dose for Methohexital (Brevital)?
20-30 mg/kg
What is the induction dose for propofol?
Conscious sedation?
Maintenance?
Induction: 1.5-2.5 mg/kg IV
Conscious Sedation: 25 to 100 mcg/kg/min
Maintenance: 100-300 mcg/kg/min
Propofol produces unconsciousness within how long?
30 seconds
What is the E 1/2 Time for Propofol?
0.5-1.5 hours
What is the sub-hypnotic dose or propofol?
10-15 mg IV followed by 10 mcg/kg/min
If using propofol as an anti-pruritic, what dose would you give? What about an anti-convulsant?
Anti-pruritic - 10 mg IV
Anti-convulsant - 1 mg/kg IV
Etomidate…
Dose:
Onset:
E 1/2 Time :
Dose: 0.3 mg/kg IV
Onset: Within 1 minute
E 1/2 Time: 2-5 Hours
Ketamine induction dose…
0.5-1.5 mg/kg IV
4-8 mg/kg IM
Ketamine maintenance dose…
0.2-0.5 mg/kg IV
4-8 mg/kg IM
Ketamine subanesthetic (analgesic) dose
0.2-0.5 mg/kg IV
Ketamine post-op sedation and analgesia dose
1-2 mg/kg/hour
Ketamine neuraxial analgesia dose…
30 mg - Epidural
5-50 mg in 1mL of NS - Spinal/Intrathecal/Subarachnoid
Ketamine:
Onset
Return of consciousness
Full consciousness
How long does amnesia persist?
Onset: 30 seconds - 1 min (IV), 2 to 5 mins (IM)
ROC: 10 to 20 mins
Full Consciousness: 60 to 90 mins
Amnesia persists for 60 to 90 mins
CAD ‘cocktail’?
Diazepam 0.5 mg/kg IV
Ketamine 0.5 mg/kg IV
Continuous Ketamine Infusion - 15 to 30 mcg/kg/min IV
Morphine:
Dose
Onset
Peak
Duration
Dose: 1-10 mg IV
Onset: 10 to 20 mins (IV and IM)
Peak: 45 to 90 mins IM; 15 to 30 mins IV
Duration: 4-5 hours
How is Morphine metabolized?
Glucorinic acid conjugation
What are the two metabolites of morphine? Which is active? Inactive?
Morphine-3-glucoronide (Inactive)
Morphine-6-glucoride (Active)
Which active metabolite of Morphine contributes to late respiratory depression?
Morphine-6-Glucoronide
Which receptors does Meperidine/Pethidine agonize?
Mu and Kappa
What are the four analogues of Meperidine?
Fentanyl
Sufentanil
Alfentanil
Remifentanil
Meperidine
Dose:
Duration:
E 1/2 Time:
Metabolism:
Dose: 12.5 mg (Post-op shivering)
Duration: 2-4 hours
E 1/2 Time: 3-5 hours (35 hours with renal failure)
Metabolism: 90% Hepatic (Normeperidine)