Identify the timing of impulses or sounds in relation to the cardiac cycle. Timing of sounds is often possible through auscultation alone. In most Dpeople with normal or slow heart rates, it is easy to identify the paired ^ heart sounds by listening through a stethoscope. Si is the first of these ^ sounds, S2 is the second, and the relatively long diastolic interval separates ^ one pair from the next.
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It seems like you hear it all the time from nearly every one you know I'm SO stressed out!? Pressures abound in this world today. Those pressures cause stress and anxiety, and often we are ill-equipped to deal with those stressors that trigger anxiety and other feelings that can make us sick. Literally, sick.