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 Reference Values During Pregnancy

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Vitamin D, 25-hydroxy (plasma)

   Units Nonpregnant Adult First Trimester Second Trimester Third Trimester
ng/mL 14 - 80 18 - 27 10 - 22 10 - 18
nmol/L 35 - 200 45 - 67 25 - 55 25 - 45

 

References:
1. Abbassi-Ghanavati M, Greer LG, Cunningham FG. Pregnancy and laboratory studies: a reference table for clinicians. Obstet Gynecol. 2009 Dec;114(6):1326-31. PMID:19935037
 

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