Auscultation in Primary Care

First and Second Heart Sounds - Reduced Intensity Sounds

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This is a simulation of a first heart sound and a second heart sound with greatly reduced intensity. This can be seen in an obese patient or a patient with emphysema.

It is a challenge to your ability to hear these reduced intensity sounds.

First and Second Heart Sounds - Reduced Intensity

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The recommended auscultation position for the stethoscope is the Mitral position. For this sound, use stethoscope's Diaphragm.

maneuver

The recommended patient position is Supine

Phonocardiogram

This waveform plots sound amplitude on the vertical axis against time on the horizontal axis.

Heart Animation

Lessons

1	First and Second Heart Sounds - Normal and Unsplit
2	First and Second Heart Sounds - Reduced Intensity
3	Second Heart Sound - Splitting
4	Third Heart Sound Gallop
5	Fourth Heart Sound Gallop
6	Third and Fourth Heart Sound Gallop
7	Summation Gallop at 120 beats per minute
8	Second Heart Sound - Fixed Splitting
9	Mid-Systolic Click
10	Mitral Valve Leaflet Prolapse
11	Aortic Stenosis (Diamond Shaped Systolic Murmur)
12	Aortic Regurgitation (Decrescendo Diastolic Murmur)
13	Mitral Regurgitation (pansystolic Murmur)
14	Mitral Stenosis (Diastolic Murmur)

Practice Drill

Listening Tips
A synopsis of important sound features and timing for this abnormality.
S1: Reduced intensity.
S2: Reduced intensity.

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CourseID	31
CourseCaseOrder	2
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