When evaluating a murmur, timing relates to which part of the cardiac cycle?

Evaluating a murmur in the context of the cardiac cycle involves understanding how blood flow dynamics change during different phases. Timing is crucial because it determines whether a murmur occurs during systole (when the heart contracts and pumps blood) or diastole (when the heart relaxes and fills with blood).

A murmur can indeed occur in both systole and diastole; thus, recognizing its timing plays a critical role in diagnosing its cause. For instance, systolic murmurs can be associated with conditions such as aortic stenosis or mitral regurgitation, while diastolic murmurs may indicate issues like mitral stenosis or aortic regurgitation. Knowing that murmurs can occur in both phases helps to provide a more comprehensive evaluation and guide further investigation or treatment.

Understanding that murmurs can be present at various points in the cardiac cycle reinforces the need for a thorough assessment to determine their significance and underlying pathology. This holistic approach is essential for effective neonatal care and management.