Which of the following can be determined by lead II cardiac monitoring?
A) Impulse conduction time
B) Chamber enlargement
C) Axis deviation
D) Presence of a myocardial infarction, but not its location
A
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A patient who just suffered severe closed-head injury and has a high intracranial pressure (ICP) is about to be placed on ventilatory support. Which of the following strategies could help to lower the ICP?
a. Maintain a PaCO2 from 25 to 30 mm Hg (deliberate hyperventilation). b. Allow as much spontaneous breathing as possible (SIMV). c. Maintain a high mean pressure using PEEP levels of 10 to 15 cm H2O. d. Maintain a PaCO2 of 50 to 60 mm Hg (de-liberate hypoventilation).
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A plus sign (+) is used to indicate ____.
A. modifiers B. primary codes C. stand-alone codes D. V codes E. add-on codes
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