MedCA Medical Assistant Domain V EKG Exam (Knowledge Base Review) Q & S 2026 (Complete And Verified Study material) (24pages) LEARNEXAMS

1. When preparing a patient for an EKG, it is essential to: A. Ensure the patient has been fasting for at least 12 hours B. Confirm the patient's identity and explain the procedure C. Place the electrodes randomly to get varied readings D. Have the patient exercise to increase heart rate Correct Answer: B Rationale: Confirming the patient's identity and explaining the procedure ensures patient understanding and cooperation, which is crucial for accurate EKG results. 2. The correct placement of limb electrodes is important because: A. It affects the patient's comfort level B. It can alter the EKG waveform and lead to misdiagnosis C. It determines the duration of the procedure D. It influences the electrical activity of the heart Correct Answer: B Rationale: Incorrect electrode placement can change the EKG waveform, potentially leading to a misinterpretation of the heart's electrical activity and an incor