The following article will provide you with information regarding the use of fetal doppler in pregnancies. It consist of 
recommendations on the use of Fetal Doppler in obstetrics as a guideline. The outcome of this article was to give prediction of adverse perinatal outcome or prediction of fetal anemia.
According to the guideline, the umbilical cord artery, umbilical cord venous, ductus venosus, and middle cerebral artery Doppler are useful in assessing fetal health. And there are recommendations associate with each of those Fetal Doppler. You will be then taken into sections such Placental insufficiency, Assesment of Placental Function using Umbilical Artery Doppler Velocimetry, Factors Affecting Umbilical Artery Doppler Flow Velocity Waveforms, The Use of Fetal Venous Doppler Velocimetry, The Use of Doppler in Detecting Fetal Anemia, and Middle Cerebral Artery Velocimetry to Detect Fetal Hypoxia.
The article is ended with a table describe the quality of evidence and classification of recommendations in the guidelines that has been used The Evaluation of Evidence Criteria outlined in the Report of the Canadian Task Force on the Periodic Health Exam to explain. Read more about Guideline Recommendations for Using Fetal Doppler in Pregnancies in this Obstetric Guideline Article of pdf filetype (source: sogc.org).
