




A fetal Doppler is a handheld ultrasound device used in prenatal care to detect and amplify the heartbeat of a developing fetus. By utilizing high-frequency sound waves and the Doppler effect, it translates the movement of the baby’s heart into audible sound, providing peace of mind to expectant parents. How It WorksUltrasound Waves: The device’s probe (transducer) emits continuous high-frequency sound waves that bounce off the fetal heart.Doppler Effect: As the baby's heart valve moves, it changes the pitch of the returning sound waves (the Doppler effect).Amplification: The monitor processes these changes and amplifies them through a built-in speaker or headphones. [1,]Key Features & UseUsage Timeline: Typically used from the late first trimester (around 10 to 12 weeks) onward by healthcare professionals. Gel: It requires a conductive ultrasound gel (or water/lotion substitute) applied to the abdomen to eliminate air gaps and ensure clear signal transmission.
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