Myocardial infarctions result from ____.
A. damaged heart valves
B. weakened heart muscle
C. obstruction of blood to the heart muscle
D. a serious arrhythmia
E. a defective SA node
C. obstruction of blood to the heart muscle
Myocardial infarction is caused by the complete blockage of one or more coronary arteries, resulting in obstruction of blood to the heart.
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An EMT is rapidly extricating a critically injured patient from a severely damaged vehicle. Which one of the following would the EMT recognize as acceptable given this patient's condition?
A) A vest-type or other short spine immobilization device can be omitted, but a cervical collar and manual in-line spinal stabilization are still required. B) Manual in-line spinal stabilization can be omitted in the vehicle, but should be taken once the patient has been extricated and is on the long backboard. C) A vest-type or other short spine immobilization device still needs to be used to extricate the patient from the vehicle. D) The long backboard can be omitted and the patient can be placed directly onto the stretcher as long as a cervical collar has been applied.
The EMT should use an AED on a child older than 1 year if:
A. he or she is not breathing and has a weakly palpable pulse. B. his or her condition is rapidly progressing to cardiac arrest. C. pediatric pads and an energy-reducing device are available. D. special pads are used and the child has profound tachycardia.