What is characterized by a heart rate below 60 beats per minute?

Bradycardia is defined as a condition where an individual has a heart rate that is lower than the normal resting rate, typically considered to be less than 60 beats per minute. This can occur in various situations, either as a normal physiological finding in well-trained athletes or as a pathophysiological condition that may require medical evaluation and intervention.

A lower heart rate may be caused by various factors, such as increased vagal tone, certain medications, or underlying heart conditions. It's important to monitor and assess the patient for any associated symptoms, such as dizziness, weakness, or syncope, which may indicate that the bradycardia is having a significant effect on cardiac output and overall perfusion. Understanding bradycardia is crucial in the context of airway and respiratory management, as it can affect ventilation strategies and patient care protocols.