During the acute phase following a myocardial infarction (MI), the nurse prepares for the possibility of the patient receiving a temporary pacemaker in which circumstance(s)? (Select all that apply.)
a. The patient's heart rate continues to re-main above 100 beats/minute.
b. The patient is experiencing continued an-gina pain.
c. The patient experiences complete heart block.
d. The patient's systolic BP drops below 100 consistently.
e. The patient's pulse rate remains below 40 beats/minute.
C, E
A temporary pacemaker is warranted when the patient's pulse consistently remains below 40 beats/minute and when the patient experiences complete heart block. Complete heart block means that the electrical impulse for contraction does not go through the atrioventricular node to the ventricles and the ventricles are not signaled to contract. A heart rate above 100, continued angina pain, and a consistent systolic BP below 100 would not be corrected by a pacemaker.
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