Determination of Estimated Birth Date. It is impossible to predict the day of birth. Estimated date of birth - EDB, EDD or EDC. 280 days - 38 to 42 weeks in length. Nagele’s rule: 1st day of last menstrual period. Count back 3 months and add 7 days.
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It is impossible to predict the day of birth.
Estimated date of birth - EDB, EDD or EDC.
280 days - 38 to 42 weeks in length.
Estimated Fetal Growth:
Assessing Fetal Well-Being:
Fetal Heart Rate:
Rhythm Strip Testing:
Contraction Stress Testing:
Doppler Umbilical Velocimetry:
Amniotic Fluid Volume Assessment:
ECG at week 11 of pregnancy (inaccurate before week 20 because fetal electrical conduction is week).
MRI used to diagnos ectopic pregnancy or trophoblastic disease.
Maternal Serum Alpha-Fetoprotein is a substance produced by the fetal liver that is present in amniotic fluid and maternal serum. Begins to rise at week 11.
Triple Screening - analysis of 3 indicators:
Chorionic Villi Sampling (CVS)
Percutaneous Umbilical Blood Sampling
Biophysical Profile (fetal Apgar)
fetal heart reactivity.