Which device records the heart's electrical activity over time?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which device records the heart's electrical activity over time?

Explanation:
The electrocardiograph records the heart’s electrical activity over time. It uses skin-mounted electrodes to detect the tiny electrical signals generated as the heart beats and converts them into a trace that changes over time. That tracing—often visible as P waves, QRS complexes, and T waves—reflects atrial depolarization, ventricular depolarization, and repolarization, allowing assessment of heart rate, rhythm, and conduction. The other tools have different roles: a stethoscope listens to heart sounds rather than electrical signals, an otoscope examines the ear, and a sphygmomanometer measures blood pressure.

The electrocardiograph records the heart’s electrical activity over time. It uses skin-mounted electrodes to detect the tiny electrical signals generated as the heart beats and converts them into a trace that changes over time. That tracing—often visible as P waves, QRS complexes, and T waves—reflects atrial depolarization, ventricular depolarization, and repolarization, allowing assessment of heart rate, rhythm, and conduction.

The other tools have different roles: a stethoscope listens to heart sounds rather than electrical signals, an otoscope examines the ear, and a sphygmomanometer measures blood pressure.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy