Timing S1 and S2 heart sounds

[wheatthinssalty]

When you listen to the patients heart and feel their pulse, how do you know which heart sounds is S1 and which one is S2? I also have great difficulty knowing if a murmur is diastolic or systolic

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[CaptainSSO]

S1 is first. S2 is second.

Sound 1. Sound 2.

ThumpThump...........ThumpThump.......
S1-------S2.......................S1------S2

Pulses don't have an S1 and S2. That's the mitral and aortic valves closing, your arteries don't have valves.

This thread is a little scary because this is very, very basic info.

Are you a med student? I'm not sure how you could have passed your tests without knowing this.

 

[jcu]

S1 is first. S2 is second.

Sound 1. Sound 2.

ThumpThump...........ThumpThump.......
S1-------S2.......................S1------S2

Pulses don't have an S1 and S2. That's the mitral and aortic valves closing, your arteries don't have valves.

This thread is a little scary because this is very, very basic info.

Are you a med student? I'm not sure how you could have passed your tests without knowing this.

Re: pulses, I think he was referring to discerning murmurs.

OP, you already mentioned it. Just time the murmur you hear with the pulse - if they coincide, it's systolic and if they don't, it's diastolic.

 

[therick248]

You feel the pulse while auscultating. S1 coincides/comes just after the pulse.