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Continuing Education in Anaesthesia, Critical Care & Pain 2005 5(6):215-217; doi:10.1093/bjaceaccp/mki059
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Continuing Education in Anaesthesia, Critical Care & Pain | Volume 5 Number 6 2005 © The Board of Management and Trustees of the British Journal of Anaesthesia [2005]. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Multiple Choice Answers

The first 150 words of the full text of this article appear below.

134. The following end-tidal concentrations of anaesthetic agents are likely to ensure lack of postoperative recall in an otherwise unmedicated patient at sea-level:
(a) False; (b) True; (c) True; (d) False; (e) True
End-tidal concentrations of <0.8 MAC may be associated with awareness. (a) 67% MAC, (b) 115% MAC, (c) 110% MAC, (d) 103% of 1 MAC for a 40-yr-old; remember that MAC is increased by ~25% in the very young, (e) 77% of 1 MAC for a 40-yr-old; remember that MAC is reduced by ~25% in the elderly.
135. The following situations are associated with an increase in the risk of awareness:
(a) True; (b) True; (c) True; (d) False; (e) False
(a) Thyrotoxicosis increases MAC. (b) ß-blockade may mask the signs of awareness. (c) Cardiac surgery is associated with significantly increased risks of awareness. (d) Long procedures have not been associated with awareness. (e) Spontaneous ventilation occurs in . . . [Full Text of this Article]


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