lub dub

[realruby2000]

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ok, so I thought the heart sounds "lub dub" corresponded to "s1" and "s2" but I read here on some post that its the other way around....with s1 being dub and s2 being lub.... which is correct?

 

[the citizen]

To me neither sounds like lub or dub. It's the cadence that matters, and the way most people say it lub=s1. At normal heart rates, diastole is longer than systole. So, lub..dub........lub..dub....... or dub..lub........dub..lub...... doesn't matter. It gets harder to distinguish the sounds when the patient is tachy, so you have to feel the pulse.

 

[ericdamiansean]

Actually, if no one were to tell u it's lub dub, you'll probably go 'dub dub'

Don't use that to differentiate the S1 and S2..always use the other methods ie. palpation of the carotids etc

 

[MustafaMond]

I can always tell from the pitch.
S1 is deeper and lower

 

[12R34Y]

There is no way I could tell which one is which until I feel the carotid pulse while I'm doing it intially. After that I know I'm listening to the correct cadence. Many times my mind plays tricks on me and i get it backwards. Like a cardiologist told our class last year in lectures.........."the most common diastolic murmur is a systolic murmur that is misheard."

later