Which grade of murmur is described as moderate and readily heard over multiple valve areas?

A Grade III murmur is characterized as moderate in intensity and easily audible across multiple valve areas. Murmurs are classified primarily based on their loudness, with grades ranging typically from I to VI. Grade I is very faint and often difficult to detect, while Grade II is still quiet but can be heard more clearly than Grade I.

As the intensity increases, Grade III murmurs become notably louder than the previous grades but do not reach the level of being considered loud. They can be convincingly heard through different areas associated with heart valves, indicating that there is a significant anatomical or physiological abnormality present.

This classification helps in clinical assessments, allowing veterinarians to gauge the severity of heart murmurs and guide further diagnostics and potential treatments. The ability to hear a Grade III murmur over multiple valve areas suggests a moderate yet pervasive cardiac issue, enabling effective monitoring and management strategies.