Alpha feto protein is decreased in: (Repeat)
Correct Answer: Down's syndrome
Description: Ans: B (Down's syndrome) Ref: Dutta Textbook of Obstetrics pg 106Explanation:MATERNAL SERUM AFPAFP is oncofetal protein w ith molecular weight 70000It is produced by yolk sac and fetal liverHighest level of AFP in fetal serum and amniotic fluid is seen around 13 weeks and thereafter decreasesMaternal serum AFP reaches a peak around 32 weeksMSAFP level is elevated in:Wrong gestational ageOpen NTDMultiple pregnancyRh isoimmunisationIUFDAnterior abdominal wall defectsRenal anomaliesMSAFP is low in:Down's syndromeGTD Test is done between 15 to 20 weeks
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Gynaecology & Obstetrics
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