Artefact and Dysrhythmia

Describe the role of each component of the ECG in the heart’s contraction: the P wave, the PR interval, the QRS complex, the ST segment, the T wave, and the QT interval. What is the difference between artefact and dysrhythmia? How can you reduce artefacts? What are some situations that can occur if the artifact is not reduced or eliminated? You are working in the Telemetry Unit. The nurse “watching” the monitors is reading a magazine. She constantly turns off an alarm that looks a lot like Ventricular Fibrillation. She tells you that it is not a dysrhythmia, it is just artefact. What do you think about her actions? What is the worst-case scenario in this situation? What would you do?

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