The nurse is assisting a primigravida on calculating the due date of her baby using naegele rule. the most important information provided by the mother is Gestational age. The gestational age is used to determine a potential due date, guide obstetrical treatment and testing, and assess the newborn's health. It acts as a guide to help assess whether the baby is developing normally and when to carry out specific prenatal testing.
Background. Franz Naegele, a German doctor, is credited with saying that a pregnancy lasts 40 weeks, or 280 days (1778–1851). His rule adds nine months and seven days to the first day of the last menstrual period.
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