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70 Cards in this Set
- Front
- Back
What is the brand name for Etomidate?
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Amidate
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How is Etomidate supplied?
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2 mg/ml
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What is the induction dose for Etomidate?
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0.1-0.4 mg/kg
(70 kg patient = 7 - 28 mg) (100 kg patient = 10 - 40 mg) Typical dose 20-40 mg |
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What is the Onset of Etomidate?
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30 to 60 seconds
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What is the Duration of Etomidate?
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3 to 10 minutes
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How is Etomidate metabolized?
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Primary through ester hydrolysis secondary through hepatic
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Is Etomidate highly protein bond?
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Yes 77% bond to albumin
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What receptor does Etomidate effect?
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Potentiation of GABA (A) -mediated chloride channels
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What effects does Etomidate have on the CNS?
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Potent cerebral vasoconstrictor
Decreases CBF & ICP Myoclonus |
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What effects does Etomidate have on CV?
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Minimal changes in BP & HR
(Drop in BP maybe exaggerated by hypovolemia) |
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What effect does Etomidate have on respiratory?
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Minimal depression, but if given rapidly IV may cause apnea.
Exaggerated depression with inhaled anesthetics or opioid |
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What effect does Etomidate have on endocrine?
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Adrenal suppression
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Who (patient population) would you choose Etomidate over propofol or barbiturates?
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In patients with compromised myocardial contractility
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Does infusion of Etomidate hurt?
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Yes
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Is recovery from Etomidate fast?
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Yes 3 - 10 minutes
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Does Etomidate produce analgesia?
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No, it produces hypnotic effects
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What is the half life of Etomidate?
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75 minutes
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What is the pregnancy category of Etomidate?
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Category C
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What is the brand name for Ketamine?
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Ketalar
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How is Ketamine supplied?
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10 mg/ml
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What is the Induction dose for Ketamine?
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0.5 - 2 mg/kg
(70 kg patient 35 -140 mg) (100 kg patient 50 -200 mg) Typical dose ???? |
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What is the Onset of Ketamine?
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30 seconds
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What is the Duration of Ketamine?
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5 to 15 minutes
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Does Ketamine produce analgesia?
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Yes significant analgesia
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The cataleptic state aka "dissociative anesthesia" is associated with which IN anesthetic?
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Ketamine
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What is the cataleptic state aka "dissociative anesthesia"?
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After the admin of Ketamine the patient's eyes remain open with a slow nystagmic gaze.
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What is the major psychological issue with Ketamine?
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Unpleasant hallucinations
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How is Ketamine metabolized?
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Hepatic CYP450 system
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Is Ketamine bond to protein?
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It has a low protein binding (12%)
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What receptor does Ketamine work on?
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Inhibition of the N-methyl-D-aspartate receptor complex
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Is amnesia complete with solo admin of Ketamine?
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Amnesia is not complete, however when benzos are coadmin then amnesia is complete
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What effects does Ketamine have on CNS?
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Cerebral vasodilator, increases CBF & CMRO2 (metabolic rate)
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What effects does Ketamine have on CV?
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Significant, but transient increase in BP, HR, & CO
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What effects does Ketamine have on respiratory?
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Minor depression Hypercapnia response preserved
After rapid IV may cause apnea Increase salivation which is a risk for laryngospasm (especially in peds) Relaxes bronchial smooth muscles |
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What is the pregnancy category for Ketamine?
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Ketamine is contraindicated in pregnancy, there is no FDA assignment however the manufacture has assigned Category B
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What is the Brand name for Methohexital?
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Brevital
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How is Methohexital supplied?
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10 mg/ml
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What is the Induction dose for Methohexital?
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1 - 1.5 mg/kg
(70kg patient 70 - 105 mg) (100kg patient 100 - 150 mg) Typical dose 70 mg |
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What is the Onset of Methohexital?
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45 seconds - 1 minute
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What is the Duration of Methohexital?
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4 to 7 minutes
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How is Methohexital metabolized?
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Hepatic metabolism by oxidation
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Chronic use of barbiturates does what to liver enzymes?
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Induces oxidative mircosomal enzymes
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What receptors does Methohexital work on?
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GABA (A) and unknown inhibition of excitatory receptors
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What effect does Methohexital have on CNS?
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Potent cerebral vasoconstrictor
Decreases CBF, ICP, & cerebral blood volume Decreases CMRO2 Neuroprotection from focal cerebral ishemia |
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Does Methohexital have analgesic effects?
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No, in fact evidence suggest that it lowers the pain threshold and increases pain
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Does Methohexital decrease activity on EEG?
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No it is an exception among barbiturates.
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Which barbiturate activates epileptic foci?
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Methohexital
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What effects does Methohexital have on CV?
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Decrease in BP 2/2 vasodilation
Increase HR |
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What effects does Methohexital have on respiratory?
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Marked depression with decreased TV and RR, apnea
Decreased hypercapnia and hypoxia response Requires neuromuscular blocking drugs for instrumentation of airway |
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What Pregnancy category is Methohexital?
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Category B
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What is the brand name for Propofol?
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Diprvan
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How is Propofol supplied?
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10 mg/ml
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What is the induction dose of Propofol?
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1.5 - 2.5 mg/kg
(70 kg patient 105 - 175 mg) (100 kg patient 150 - 250 mg) Typical dose around 175 - 200 mg |
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What is the Onset of Propofol?
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45 seconds to a minute
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What is the Duration of Propofol?
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5 to 10 minutes
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How is Propofol stored?
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In a lipid emulsion.
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Can you give Propofol to a patient with an egg allergy?
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Yes, Maybe, No, depends because the major component of the lipid emulsion is egg yolk lecithin... clear as mud?
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How long should a Propofol bottle be used for after it has been opened and why?
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6 hours because of the lipid emulsion can support bacterial growth
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How is Propofol metabolized?
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Hepatic metabolism, however their maybe up to 30% metabolism in the lungs
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Is Propofol highly protein bond?
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Yes 97% bond
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Describe the context-sensitive half-time of Propofol.
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The context-sensitive half-time of Propofol is brief, even after prolonged infusion allowing for rapid recovery
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What receptors does Propofol work on?
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Potentiation of chloride current mediated channels at the GABA (A) receptor complex
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What are the effects of Propofol on CNS?
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Hypnotic effect without analgesic effects
Decreased CBF, CMRO2, ICP Has neuroprotective properties Anticonvulsant effects |
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What are the effects of Propofol on CV?
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Most pronounced decrease in BP
Vasodilates Arterial and Venous - reduced preload and afterload Inhibits baroreflex (very small increase in HR) |
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What are the effects of Propofol on Respiratory?
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Potent respiratory depressant
Apnea after induction dose Response to hypoxia and hypercapnia is reduced Relaxes reflexes for instrumentation of the airway Decrease wheezing |
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Would you use Propofol in a patient you are concerned about post-op N/V?
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Yes Propofol has antiemetic activity
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Does Propofol potentiate neuromuscular blockage drugs?
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NO
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What should you do if you unexpectedly get tachycardia during Propofol induction?
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Evaluate for metabolic acidosis (ABG)
Known as propofol infusion syndrome |
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Does Propofol hurt on injection?
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Yes
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Do children require more or less Propofol for induction?
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More 2.5 - 3.5 mg/kg
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