[Advanced Auscultation] Distinguishing Heart Sounds from Murmurs
Complete the advanced materials you need for auscultation skills
1. Memory heart auscultation area
Heart valve auscultation area usually has 5
Mitral valve area (M):
Located at the point where the apex of the heart beats the strongest, also known as the apex region
Pulmonary valve area (P):
2nd intercostal space at left sternal border
Aortic valve area (A):
2nd intercostal space at right sternal border
Aortic valve second auscultation zone (E):
The 3rd intercostal space on the left sternal border, also known as Erb's area
Tricuspid area (T):
On the left border of the lower end of the sternum, that is, the 4th and 5th intercostal space on the left border of the sternum
2. Distinguish heart murmurs from extra heart sounds
heart murmur
Functional murmur:
The sound is soft and blowing, with limited conduction capacity; weak intensity, without tremor
Organic murmur: high-pitched and rough, with far and wide conduction; strong intensity, may be accompanied by tremor
extra heart sound
Independent of S1 and S2, there are changes in pitch, intensity and time course on the basis of them, occasionally accompanied by a heart murmur; the intensity is related to the mechanism of the disease, and it can be a slap-like or high-pitched popping sound
About Hanhong Medical Technology
Hanhong Medical Technology is a high-tech medical device enterprise focusing on improving people's health and creating better products. The company's products are mainly medical equipment designed for auxiliary diagnosis and remote monitoring and early warning of vital signs. Current products include electronic stethoscopes, ambulatory blood pressure monitors, heart rate monitors and auscultation fetal heart rate monitors. Our electronic stethoscope uses our own patented acoustic acquisition technology, so our products are unique. The electronic stethoscope has been widely used in telemedicine projects and telehealth management.
The company adheres to the business principle of "technology for development, quality for survival", with years of experience in research and development, production and management, strong technical strength and mature quality management system, to provide customers with high-quality products and thoughtful services.
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