Certified Cardiovascular Technician Practice Exam

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Prepare for the Certified Cardiovascular Technician Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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What is the correct procedure for applying electrodes before an ECG?

Place electrodes over bony areas
Ensure electrodes are dry before application
Avoid placing electrodes over muscular areas
Use damp cloth to prepare skin before electrode placement

The correct answer is: Avoid placing electrodes over muscular areas

The proper procedure for applying electrodes before an ECG involves avoiding placement over muscular areas, as certain muscle activity can create electrical interference that may distort the recording. The goal is to achieve a clear, accurate tracing of the heart's electrical activity, and placing electrodes over muscular tissues can introduce noise due to muscle movement or electrical signals generated by the muscles rather than the heart. Ensuring that electrodes are applied correctly and on suitable areas of the skin is crucial, as it helps maintain the integrity of the ECG results. Other options, such as placing electrodes over bony areas, preparing the skin with a damp cloth, or ensuring electrodes are dry, are more about preparation than the actual placement being correct by avoiding muscles. Rather than improving the signal, these strategies could also risk introducing artifacts or interfering with the electrode's adherence and conductivity. Proper placement is essential for obtaining reliable ECG readings.