Quiz
Inhalational anesthetics
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Questions in this quiz (9)
1A 55-yo woman is undergoing GA for a Lt hemicolectomy. After induction the patient develops a junctional arrhythmia. Which inhalational anesthetic would MOST likely be associated with this arrhythmia?
- ADesflurane
- BIsoflurane
- CHalothane
- DSevoflurane
2Isoflurane is chosen for maintenance of general anesthesia in an elderly patient with severe coronary artery disease. Which of the following is MOST responsible for maintenance of cardiac output during isoflurane administration?
- ACoronary artery vasodilation
- BIncreased systemic vascular resistance
- CIncreased venous capacitance
- DIncreased heart rate
- EDecreased myocardial oxygen demand
3Which of the following would result in an INCREASE in the production of Compound A from the interaction between carbon dioxide absorbent and sevoflurane?
- ALow carbon dioxide absorbent temperatures
- BLow alveolar partial pressure of sevoflurane
- CHigh fresh gas flows
- DShort duration of sevoflurane administration
- ECarbon dioxide absorbent desiccation
4A 49-yo woman with CAD undergoes GA for resection of his intracranial tumor. Which of the following statements justify the choice of desflurane for anesthetic maintenance in this patient?
- ADesflurane will increase coronary blood flow
- BDesflurane will increase mean arterial pressure
- CDesflurane will decrease cerebral blood flow
- DDesflurane has a low incidence of airway irritation
- EDesflurane allows for rapid emergence
5 With which of the following anesthetic agents induction will be the most rapid?
- ASevoflurane
- BIsoflurane
- CHalothane
- DDesflurane
6A 52-year-old man is taken to the operating room for repair of his retinal detachment. The ophthalmologist discusses intraocular injection of intraocular injection of either air or sulfur hexafluoride (SF6) to facilitate retinal reattachment. Which is true regarding the administration of nitrous oxide to this patient?
- AAn intraocular air bubble will expand more quickly during N2O administration compared to an SF6 bubble.
- BDiscontinuing N2O 15 minutes prior to bubble injection can avoid the risk of gas expansion.
- CAn SF6 bubble will slowly shrink in the first 24 hours after injection
- DN2O can be safely administered to this patient 1 day after intraocular air injection.
- EN2O can be safely administered to this patient 5 days after intraocular SF6 injection
7Which of the following reasons best explains the more rapid alveolar washout of halothane compared with isoflurane?
- AIncreased metabolism of halothane
- BDifferences in blood solubility
- CDifferences in the blood/brain partition coefficient
- DDifferences in the oil/gas partition coefficient
8During administration of isoflurane to an obese 40-year-old woman undergoing foot surgery, the vaporizer dial is set at 2%. The inspired concentration of isoflurane measured by the mass spectrometer is, howeveronly1.2%. The BEST explanation for this observation is
- AIncreased uptake into the patient's fatty tissues
- BAbsorption of volatile anesthetic by the CO2 absorber
- CAbsorption of volatile anesthetic by the anesthesia circuit tubing
- DDilution by expired patient gases
9Which of the following is the most likely contributor to development of a fire in the CO2 absorber when sevoflurane is administered?
- ADesiccated absorbent
- BPresence of Ca(OH)2 in the absorbent
- CLow sevoflurane concentration
- DLow fresh gas flows
Information
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- Comprehensive Board Review
- Author
- Mike Ru
- Language
- English
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