What are the 5 abnormal heart sounds

1. What are the abnormal heart sounds?
2. Which heart sound is most concerning?
3. Are S3 and S4 sounds abnormal?

What are the abnormal heart sounds?

Heart murmurs are sounds — such as whooshing or swishing — made by rapid, choppy (turbulent) blood flow through the heart. The sounds can be heard with a device called a stethoscope. A typical heartbeat makes two sounds like "lubb-dupp" (sometimes described as "lub-DUP") when the heart valves are closing.

Which heart sound is most concerning?

The main normal heart sounds are the S1 and the S2 heart sound. The S3 can be normal, at times, but may be pathologic. A S4 heart sound is almost always pathologic.

Are S3 and S4 sounds abnormal?

Background. The third and fourth heart sound (S3 and S4) are two abnormal heart sound components which are proved to be indicators of heart failure during diastolic period.