An unresponsive 60-year-old male is apneic and has a weak, rapid pulse. His oxygen saturation reads 79%. You should:
A: ventilate at a rate of 8 to 10 breaths/min, ensuring visible chest rise.
B: deliver one breath over 1 second every 5 to 6 seconds.
C: mildly hyperventilate him until his oxygen saturation improves.
D: use a pocket face mask to deliver 12 to 20 breaths/min.
Answer: B: deliver one breath over 1 second every 5 to 6 seconds.
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Following blunt injury to the anterior torso, a patient is coughing up bright red blood. You should be MOST suspicious of:
A: severe myocardial damage. B: bleeding within the lungs. C: intraabdominal bleeding. D: gastrointestinal bleeding.
Research suggests that the ability to precisely time movements is:
A. Task specific B. Acquired only through practice C. Dependent on whether a task is an open or closed motor skill D. Controlled by a common internal clock for all tasks