What is the method for listening to fetal heart sounds using a stethoscope?
Oct 17, 2023
Source: Cainiu Health
Dr. Zhao Xiaodong
Introduction
Under normal circumstances, the method of auscultating fetal heart rate with a stethoscope involves healthcare providers listening to the fetal heartbeat through the abdominal wall of pregnant women at 18–20 weeks of gestation. The auscultation site varies depending on fetal position, and the normal fetal heart rate ranges between 110 and 160 beats per minute. If a patient experiences any discomfort or symptoms, it is recommended to seek medical attention promptly to avoid delays in diagnosis and treatment.
Under normal circumstances, the method of auscultating fetal heart sounds with a stethoscope involves healthcare providers listening to the fetal heartbeat through the pregnant woman's abdominal wall at 18–20 weeks of gestation. The location for auscultation depends on fetal position, and the normal fetal heart rate ranges between 110 and 160 beats per minute. A detailed explanation is as follows:
At 18–20 weeks of pregnancy, the fetal heartbeat can be heard through the maternal abdominal wall using a standard stethoscope. The fetal heart sound is biphasic, resembling the ticking of a clock, and is relatively fast, normally ranging from 110 to 160 beats per minute. Fetal heart sounds should be differentiated from uterine souffle, abdominal aortic souffle, and funic souffle (umbilical cord sounds). In cases of normal fetal presentation (cephalic), the correct auscultation sites are the midline below the umbilicus or on either side of the umbilicus. For breech presentation, the appropriate locations are the midline above the umbilicus or on either side of the umbilicus. During auscultation, the pregnant woman should lie flat. First, determine the position of the fetal back, then place the stethoscope on the corresponding area of the abdominal wall to clearly hear the fetal heart sounds. Afterwards, evaluate whether any abnormalities are present based on the actual findings.
If the patient experiences any discomfort or symptoms, it is recommended to seek timely medical evaluation at a hospital to avoid delays in diagnosis and treatment.
