heart sound question

[njmedstudent87]

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this would make my life a lot easier if this was true

in any audio clip showing a heart sound is the first sound always S1....if not how are you able to tell which is S1 and which is S2

 

[AbbyNormal]

It is similar to where the accent falls in a word. S3 has the same rhythm as 'kentucky' while S4 has the same rhythm as 'tennessee'. Our medical library has audiotapes with heart sounds.

 

[jad2121]

I've been saying those two words for about 10 minutes and I can't hear the difference in rhythm. Looks like cardiology is out

 

[njmedstudent87]

S3 and S4 aren't bad

s3= dum--da-da------dum--da da

s4= da-da--dum------da-da--dum

...it's more the other frikin murmurs...like one i heard that was crescendo decrescendo...i just hear static and nothing else...unless you have bat like ears how are you supposed to pick that up

 

[AbbyNormal]

I tried to find something on Youtube but I found S3 and murmurs but couldn't find a clearly audible S4 or rub or click (artificial valve).

This one has decent S3 and a murmur FWIW

[YOUTUBE]mVZFf0xaCQI[/YOUTUBE]

 

[Sol Rosenberg]

this would make my life a lot easier if this was true

in any audio clip showing a heart sound is the first sound always S1....if not how are you able to tell which is S1 and which is S2

The delay from S1 to S2 is almost always shorter than the delay from S2 to the next S1.

So, let's assume that what you say about the first sound always being S1 is NOT true (I honestly haven't noticed on the practice questions that I have done,) you can use the fact that those delays are different to determine S1 and S2.

Most of all, you need to practice. If it sounds like this is a lot of effort, you need more practice. I can essentially do all of the above in a few seconds.

As far as S3 and S4 goes, I never got the whole "Kentucky" or "Tennessee" thing. S3 is like a low-pitched fixed-split S2, while S4 is like a fixed-split S1. It sounds like you need to start by learning how to pick out S1 and S2. Then, the rest will fall into place.