Q&A: What Is Fetal Acoustic Stimulation?

March 2, 2017
Fetal acoustic stimulation is pretty much what it sounds like: Itâs when we wake up your fetus with sound â and a little vibration too. Docs use it during a nonstress test, in which they monitor the placenta to make sure itâs functioning. In the nonstress test, theyâll put a heart-rate monitor on your belly to see how your fetusâs heart rate changes when he moves. If heâs asleep, theyâll press the fetal acoustic stimulation device on your belly to wake him up, so he starts moving again, and they can read his heart rate.
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