Which diagnostic test is recommended to detect a heart murmur?
Heart murmurs are sounds made by rapid, choppy (turbulent) blood flow through the
heart.
The sounds can be heard with a device called a stethoscope.
Heart murmurs can be present at birth (congenital) or develop later in life (acquired).
Some heart murmurs are harmless (innocent). An innocent heart murmur is not a sign of heart disease and doesn't need treatment. Other heart murmurs may be a sign of a serious heart condition.
Diagnosis
Heart murmurs may be detected when a physical exam is done for another reason.
You'll be asked questions about your personal and family medical history.
A health care provider can listen to the heart using a device called a stethoscope. Doctor will study how loud is the heart murmur. Where in the heart is it? Does the sound spread to the neck or back? Does exercising or changing body position affect the sound?
Tests are done to determine the cause of worrisome heart murmurs. Heart murmur tests may include echocardiogram, chest X-ray, electrocardiogram (ECG or EKG).
Source:
https://www.mayoclinic.org/diseases-conditions/heart-murmurs/diagnosis-
treatment/drc-20373175
