Transfer right hip muscle, open approach
A) 0KXH4Z1
B) 0KXM0Z1
C) 0KXN0ZZ
D) OKXP0Z0
C
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The two lower chambers of the heart are called the:
a. atria. b. ventricles. c. myocardium. d. bundle of His.
During a stress test, the patient exercises on a bicycle or treadmill because these actions stress the heart and require more ________ for the heart muscle cells.
A. helium B. hydrogen C. carbon dioxide D. oxygen
You are dispatched to an unconscious hemodialysis patient. On arrival to the dialysis clinic, the patient is unresponsive, apneic, and pulseless. You secure the ABCs, begin ventilation, and initiate chest compressions. However, the patient's cardiac arrest rhythm is continuously unresponsive to defibrillations with your AED. The best approach is to:
A) begin transporting and contact an ALS intercept. The patient's dysrhythmia may be related to kidney failure. B) continue defibrillating as the monitor recommends. The myocardium becomes increasingly responsive to successive defibrillations. C) call online medical control to terminate the code. The probability of survival is too low to continue resuscitation efforts. D) run a "no-electricity" code in which compressions and ventilation are continued. No additional defibrillations are necessary.
The interval that begins at the QRS complex and ends at the apex of the T wave is which of the following?
A) Relative refractory period B) Absolute refractory period