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Re: Definition of termFrom: Luis Sanchez-Ramos (sanchez-ramos@worldnet.att.net)Tue Dec 29 21:43:50 1998
At Tue, 29 Dec 1998, Peter Wein wrote:
>>"Term infant: an infant born anytime after 37 complete (menstrual) weeks of gestation through 42 completed weeks of gestation (260 to 294 days)<< Fortunately I also own an Obstetrical textbook: according to Johnson TRB, Walker MA, and Niebyl JR.chapter 8 "Preconception and Perinatal Care" under assessment of gestational age:....human pregnancy has a duration of 280 days (280 divided 7 = 40 weeks) measuring from the first day of the LMP. The standard deviation is 14 days (280 - 14 = 266) 266 days divided by 7 = 38 weeks. Two-hundred eighty plus 14 days = 294 (294 divided by 7 = 42 days). So, term is defined as 40 weeks (38-42 weeks). By the way, the text is OBSTETRICS Normal & Problem Pregnancies (Churchill Livingstone) it probably has sold more than 100,000 copies. LSR
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