smitha
Forum Elite
Topics: 53
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A 23 yo primigravida presents for a routine prenatal visit . She is currently 16 wks pregnant .Which of the following gestational age-specific prenatal lab tests shud now be performed?
A. Hepatitis B surface Ag.
B. Syphilis serology
C.CBC
D.Maternal serum -a-fetoprotein(MS-AFP)
E.Urine culture
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| bikram
Forum Newbie
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Posts: 25
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MS-AFP
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| smitha
Forum Elite
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Exactly bikram........ 
MS-AFP is the only test listed here, which is gestational-age specific!!!!!!!
Other GESTATIONAL AGE SPECIFIC TESTS----------
1. Chorionic villous sampling/CVS----at 9-12wks
2.Amniocentesis--->/= 15wks
3. MS-AFP----15-19wks
4.Triple marker screen--15-19wks
5.Fetoscopy---15-20wks
6.Sonography---18-20wks(optimal)
7.PUBS/COrdocentesis/Percutaneous Umbilical Cord Blood Sampling---->20wks.
Hope that helps...............
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| cool
Forum Newbie
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i think ultra sound should be on 7 week, is nt it????
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| dpk
Forum Junior
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Posts: 66
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cool u r right too...
actually at 8wks USG helps in POG
but at 18-20wks it helps to rule out structural anomalies but if only one has to be done it should be 18-20wks
good luck
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| dr.shar
Forum Elite
Topics: 38
Posts: 236
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sonogram is not a routine investigation for pregnancy
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