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Uptodate Reference Title
The effect of fetal breathing on umbilical artery Doppler indices
The effect of fetal breathing on umbilical artery Doppler indices
Fluctuations (vertical arrowheads) in the umbilical artery Doppler waveforms during fetal breathing are depicted in this image. The upper portion of the image shows color Doppler guided interrogation of the umbilical artery. The lower portion shows spectral Doppler waveforms from the umbilical artery.