What Is a Cardiology Stethoscope?
Auscultation of the heart is a diagnostic method of placing the stethoscope chestpiece in the anterior region of the heart and listening to the sound of the heart beat to understand the state of the heart. Auscultation of the heart includes heart rate, heart rhythm, heart sounds, murmurs, and pericardial fricatives.
Basic Information
- Chinese name
- Cardiac auscultation
- Auscultation
- Heart rate, heart rhythm, heart sounds, pericardial fricatives, etc.
- Indication
- Heart disease such as rheumatic heart disease
- Clinical significance
- Significant for early diagnosis of cardiovascular disease
Preparation before cardiac auscultation
- 1. Keep the environment quiet and warm.
2. The patient can take a seated or supine position to fully expose the chest.
3. Use bell-shaped body parts to listen to low-frequency heart sounds or noise, and use drum-shaped body parts to listen to high-frequency heart sounds or noise.
Heart auscultation auscultation content
- 1. Heart rate refers to the number of heartbeats per minute. Normal people 60 ~ 100 times / minute; young children 150 times / minute. Adult heart rate exceeds 100 beats per minute. Heart rate is less than 60 beats / min bradycardia.
2. Heart rhythm refers to the rhythm of the heart beating. Basic rules of normal people's heart rhythm. Some young people may have a heart rhythm that changes with breathing. The heart rate increases during inhalation and slows down during exhalation. It is called sinus arrhythmia, which generally has no clinical significance.
3. Normal heart sound: first heart sound (S1), second heart sound (S2), third heart sound (S3) or fourth heart sound (S4). Note that S1, S2 increase, decrease, increase and decrease alternately in each valve region.
4. Noise (1) Definition Cardiac murmur refers to abnormal sounds produced during the contraction or relaxation of the heart, in addition to heart sounds and extra heart sounds. When you hear a heart murmur, pay attention to the loudest part of the murmur, the direction of conduction, the phase, the nature, the intensity, and so on.
(2) Nature spray, sigh, blow, rumbling, machine, etc.
5. Pericardial friction sound (1) is defined as the sound between the visceral and wall pericardium due to the deposition of fibrin due to biological or physical and chemical factors, resulting in friction when the heart beats.
(2) Nature It is the loudest to hear in the anterior region of the heart or the 3rd and 4th intercostal space of the left margin of the sternum. Pericardial fricatives are not classified as cardiac murmurs.
Cardiac auscultation indication
- Heart diseases such as mitral stenosis, aortic stenosis, and rheumatic heart disease.
Cardiac Auscultation Contraindications
- Mental disorders, etc. do not cooperate with the examiner.
Clinical significance of cardiac auscultation
- Auscultation can reflect the hemodynamic changes of the cardiovascular and is of great significance for the early diagnosis of some cardiovascular diseases.
Heart auscultation precautions
- 1. Auscultation should be performed in a quiet office.
2. The examiner's attention should be focused.
3. When auscultating the heart, the patient should be in a comfortable position, preferably in a sitting or supine position. If necessary, auscultation should be performed after exercise to make certain noises easier to hear.
4. The bell body or drum body used during auscultation should be warm.
5. At the same time as auscultation, visit and palpation should be combined, if necessary, at the same time.
6. Auscultation should follow a fixed order.