correlational
Analysis v1
Strong Support
When doctors press harder with the ultrasound wand on a pregnant person’s belly, it changes how blood flows in the baby’s brain—some speeds go up, one goes down, and one stays the same. It’s like squeezing a hose: the water flow changes, even if the baby is healthy.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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When the ultrasound probe is pressed harder on the mom’s belly, it changes how blood flows in the baby’s brain—making the fast pulses faster and the slow pulses slower, but not changing the average flow. This means the pressure itself affects the readings, not the baby’s health.
Contradicting (0)
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Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.