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The maximum number of hours awarded for this Continuing Nursing Education activity is 0. Historically, dating pregnancies and calculating due dates were left to weekly pregnancy calendars. However, ultrasound dating, in particular first trimester sonography, has greatly improved our ability to calculate the estimated due date EDD. ACOG recommends redating as follows:. Accurate dating is vital to pregnancy management, as certain interventions and management decisions may be based on such information including timing of delivery in the case of pregnancy complications.
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If you have more ultrasounds, each ultrasound report will contain a new due date based on the most recent measurements. Due date estimations are more accurate earlier in pregnancy. Later ultrasounds are helpful in determining whether the fetus is growing well but not for determining the age of the fetus.
Learn more about how your body changes during your pregnancy. A new study finds that epidurals do not affect child development in their later years. A fetal arrhythmia is an irregular heart rate — too fast, too slow, or otherwise outside the norm. It's often benign. Postpartum diarrhea after a C-section is normal. Sharing our experiences of pregnancy and infant loss can help us heal.
Using breast milk for eczema is a popular home remedy. Here's what the research says about acupuncture for your morning sickness.
Pumping shouldn't hurt. If your nipples are painful or sore, there are there are things you can do. Learn what to expect during your first prenatal visit. Health Conditions Discover Plan Connect. Medically reviewed by Debra Rose Wilson, Ph. How to calculate Don't know date of last period Irregular periods Doctor changes due date Ultrasound date Sources Overview.
How can I calculate my due date? What if I have irregular periods or long cycles? What does it mean if my doctor changes my due date? What is the ultrasound date, and why is it different from my due date? If the baby is actually smaller or larger than what they should be, underlying issues need to be considered that might be causing the discrepancy in growth.
For example, mothers with uncontrolled diabetes Type 1, Type 2, or Gestational cook very large babies. These discrepancies might affect delivery, but they might not. For example, if your baby is consistently measuring small and falling below where they should be, your doctor might decide you need to be delivered because your baby would be better out than in. If you have questions about your due date, talk with your doctor who can give you the best information. Intermountain Healthcare is a Utah-based, not-for-profit system of 24 hospitals includes "virtual" hospital , a Medical Group with more than 2, physicians and advanced practice clinicians at about clinics, a health plans division called SelectHealth, and other health services.
Helping people live the healthiest lives possible, Intermountain is widely recognized as a leader in clinical quality improvement and efficient healthcare delivery. Which should I choose? Authors Topics.
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