Which of the following best describes the quality of an innocent murmur?
a. bowing and hissing following the second heart sound
b. soft, short, systolic, and vibratory
c. high pitched, diastolic, and organic
d. to and fro, continuous, musical
B
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A Incorrect. Bowing and hissing following the second heart sound are not a description of an innocent murmur.
B Correct. An innocent murmur is described as soft, short, systolic, and vibratory, indicating there is no structural or functional heart disease. Over 80% of children have innocent murmurs sometime during childhood, most commonly beginning at age 3 or 4 years. Innocent murmurs are accentuated in high output states, especially with fever and anemia.
C Incorrect. High pitched, diastolic, and organic are not a description of an innocent murmur.
D Incorrect. To and fro, continuous, musical are not a description of an innocent murmur.
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