What best describes an III/VI murmur?

An III/VI murmur is classified as moderately loud and is easily heard during a physical examination. The grading system for heart murmurs ranges from I to VI, where I indicates a very faint sound that is almost inaudible, and VI reflects a loud murmur that can be heard with the stethoscope lifted off the chest, often associated with a palpable thrill. A III/VI murmur is distinctly louder than a II, which is audible but faint, and is still quite distinguishable from a IV, which is loud and also includes a thrill. Therefore, III/VI is distinctly characterized as being easily heard without the intensity of a thrill, making it the most accurate descriptor among the options provided.