Related Experiment Video
Updated: Apr 11, 2026

Ultrasonographic Assessment During Cardiopulmonary Resuscitation
Published on: October 24, 2020
Using music to maintain the correct rhythm during CPR
Background:
Cardiopulmonary resuscitation is a competency required of all health professionals, but they do not always meet chest compression standards.
Method:
Nurses received a traditional chest compression demonstration or one with music. Their compression rates were measured and compared.
Results:
After instruction, 66% of nurses who had received demonstration with music performed chest compressions within the recommended range, compared with 41% of those receiving traditional demonstration.
Conclusion:
Using music when teaching CPR can improve nurses' performance of chest compressions at the recommended rate.
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Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement: