The follow guidelines are recommended for the purpose of the heart testing schemes.
Methods of heart testing
- Consistency in the grading of heart murmurs is important between cardiologists. The follow guidelines are recommended for the purpose of the heart testing schemes.
- Grade 2/6 is less intense than the heart sounds
- Grade 3/6 is of a similar intensity to the heart sounds
- Grade 4/6 is more intense than the adjacent heart sounds.
- Where the Point of Maximal Intensity of a murmur is found to be very localised, but with a lower grade of murmur also audible elsewhere, the grade of the localised murmur should be recorded.
- When murmurs vary markedly with respirations and/or sinus arrhythmia, the mean or modal grade should be allocated, rather than the maximum (eg. often found in the first beat or a series).
- Where a decision between two grades is not easily made: to help to differentiate between the grades, the higher grade should be recorded where there is a marked radiation of the murmur and/or where the murmur is more than of brief duration.