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  • August 25 2022

    by zxc cxz
    5 minutes, 30 seconds
    672 0 0 0 0/5

    What is a Doppler test Doctors have used Doppler fetal monitors as an integral part of prenatal health checks since the early 1960s. It uses ultrasound technology, or high-frequency sound waves, to detect the fetal heartbeat, count the beats per minute, and amplify the tiny beats to make the rhythm ...