What should i do if my 5 year old has a 2/6 systolic murmur?

Get an Echo!: A 5 year child with a 2/6 systolic murmur could mean absolutely nothing, or could indicate a structural pathology within the heart. Many children have innocent or "flow" murmurs. So, a murmur is heard on auscultation, but there is no associated pathology. On the other hand, in a small subset of patients, a systolic murmur could signify a heart defect. An echo will differentiate between these 2.