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Adult Nurse Practitioner Exam Prep

Category - AANPCP Adult Nurse Practioner Practice Test

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An elderly patient who complains of chest pain, dizziness, and shortness of breath is about to be connected to a cardiac monitor. To monitor lead III:
  1. Place the positive electrode on the patient’s left leg; the negative electrode on the patient’s right leg.
  2. Place the positive electrode on the left leg; the negative electrode on the left arm.
  3. Place the positive electrode on the left arm; the negative electrode is placed on the right arm.
  4. Place the positive electrode on the left side of the chest; the negative electrode is placed on the right arm.
Explanation
Answer - B - To monitor lead III, the positive electrode should be placed on the left leg and the negative electrode on the left arm. Lead III, together with lead II, is used to monitor changes associated with myocardial infarction in the inferior wall. Option A refers to lead I and Options C and D refers to lead I.
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