31.懷孕時補充葉酸(folic acid)來預防胎兒神經管缺損最好在胚胎神經管關閉之前效果較好,因此最好在以最 後月經日期(LMP)計算之妊娠週數幾週之前?
(A)6 週
(B)11 週
(C)15 週
(D)18 週

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統計: A(488), B(240), C(111), D(51), E(0) #3065116

詳解 (共 2 筆)

#5971277
神經管關閉再gestational ag...
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#6014106
Neural tube closure is completed four weeks from conception
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Preventive effect of folic acid is not effective after that period
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Takes at least 3 weeks to reach highest serum folate 
Best before getting pregnant 
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私人筆記 (共 1 筆)

私人筆記#5478032
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conversion of neural...
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