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Which heart valve's sounds are most likely to be heard if a stethoscope is placed over the left second intercostal space lateral to the sternum?



A. Aortic
B. Pulmonary
C. Mitral
D. Tricuspid

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Mini 3 - Michigan Questions: Heart
Asked by Katherine, Last updated: Mar 31, 2020

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2 Answers

Cesar H. Pablo

Cesar H. Pablo, Journalist

Answered Apr 20, 2018

Pulmonary-the perfect place to tune in to heart valves isn't at their real sternocostal projections. If you put your stethoscope precisely where a valve is found, you may not hear anything in light of the fact that the valve may be somewhere down in the chest or the sound may be suppressed by bone or cartilage. rather, you need to tune in to the valves by putting your stethescope at a point downstream from the valve where you can hear the blood streaming and slamming into the solid chest divider.

There are purposes of auscultation for each of the four heart valves: pulmonic: left second intercostal space, parallel to the sternal point; aortic: second right intercostal space, horizontal to the sternal edge; mitral: fifth left intercostal space, 8cm far from the midline; tricuspid: fourth left intercostal space, only sidelong to the sternum.

 

John Smith

John Smith

Answered Sep 09, 2016

Pulmonary-the best place to listen to heart valves is not at their actual sternocostal projections. if you place your stethoscope exactly where a valve is located, you may not hear anything because the valve might be deep in the chest or the sound might be muffled by bone or cartilage. instead, you want to listen to the valves by putting your stethescope at a point downstream from the valve where you can hear the blood flowing and colliding with the muscular chest wall. there are points of auscultation for all four heart valves: pulmonic: left second intercostal space, lateral to the sternal angle; aortic: right second intercostal space, lateral to the sternal angle; mitral: left fifth intercostal space, 8cm away from the midline; tricuspid: left fourth intercostal space, just lateral to the sternum.
 

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