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Reference Values During Pregnancy


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Vitamin D, 1,25 dihydroxy-vitamin D (serum)

   Units Nonpregnant Adult First Trimester Second Trimester Third Trimester
pg/mL 25 - 45 20 - 65 72 - 160 60 -119
pmol/L 60 - 108 52 - 169 187 - 416 156 - 309

 


References:
1.  Kratz A, Ferraro M, Sluss PM, Lewandrowski KB. Laboratory reference values. N Engl J Med. 2004;351(15):1548-15632. PMID:15470219
2. 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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