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Reference Values During Pregnancy


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Vitamin A, retinol (serum)

   Units Nonpregnant Adult First Trimester Second Trimester Third Trimester
g/dL 20 - 100 25 - 55 31 - 49 23 - 49
mol/L 0.7 - 3.5 0.87 - 1.91 1. 07 - 1.71 0.79 - 1.71

 


References:
1. Lockitch G. Handbook of Diagnostic Biochemistry and Hematology in Normal Pregnancy. Boca Raton:CRC, 1993.
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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