Auscultation Of Heart Sounds

Question 1

S1 heart sounds like ______
What does S1 mean?

Answer 1

Lub
Closure of AV valves- mitral & tricuspid

Question 2

S2 sounds like _______
What does S2 mean?

Answer 2

Dub
Closure of semilunar valves - aortic and pulmonic

Question 3

S3 sounds like _________
What does S3 mean?

Answer 3

Ken-tuck-y (heard after S2)
Mitral valve opens, allows passive filling of left ventricle
-produced by large amount of blood striking a very compliant left ventricle

Question 4

S4 sounds like ______
What does S4 mean?

Answer 4

Ten-nes-see (heard before S1)
Atria contract to force blood into the left ventricle
- if left ventricle is non compliant; atrial contraction forces blood through atrioventricular valves
-S4 produces by blood striking left ventricle

Question 5

Murmurs sound like ______
What do murmurs mean?

Answer 5

Whooshing or blowing
Stenosis or valve problems cause increased blood flow