Which of the following conditions contraindicates the use of N2O-O2 sedation?
A)Anemia
B)Diabetes
C)Ear infection
D) High blood pressure
C
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When the paper speed is 25 mm/sec, how many boxes are present in a 1-minute recording?
A. 600 boxes per minute B. 300 boxes per minute C. 150 boxes per minute D. 450 boxes per minute
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The average person waits how many hours before seeking help for symptoms of a heart attack?
A. 12 hours B. 1 hour C. 24 hours D. 3 hours
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