Regardless of the method used, what are you doing when you calculate heart rate?
A) Counting the number of QRS complexes in a minute-long rhythm strip
B) Counting the number of irregular blocks in a minute-long rhythm strip
C) Counting the number of P waves in a minute-long rhythm strip
D) Counting the number of premature beats or pauses in a minute-long rhythm strip
A
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Which of the following is a factor that reduces effectiveness of vertical ventilation?
A. Trench cuts too small B. Personnel working ahead of the fire C. Fire streams directed into ventilation openings D. Improper location of the horizontal ventilation opening
Which of the following is TRUE regarding blood glucose levels and stroke?
A) Glucose requires insulin to enter brain cells. B) Excessive glucose in cells causes cellular dehydration. C) Hyperglycemia is protective of brain cells. D) Hypoglycemia worsens neurological outcome.