NHA EKG practice test

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What is the purpose of an EKG? Records the electrical activity of the heart Why would a physician request an exercise stress test? Symptoms of chest pain (angina); dizziness; palpitations ... 00:06 01:41 What is the normal running speed of the EKG paper? 25 mm/sec 1 small square on the horizontal axis of the EKG paper equals: .04 sec What does the vertical axis of the EKG paper measure? Voltage/ amplitude How does the stylus mark the EKG paper? Heat What is the normal sensitivity level for running an EKG? 1 (indicated by a calibration box of 10 mm) A normal calibration mark should measure: 10 mm (1) [Show More]

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