amer_almohssen
Forum Junior
Topics: 13
Posts: 38
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Mom with increase alfa feto protein which of the following has the greatest influence in determining the predictive value of the test for neural tube defects:
a- mom's history
b- alfa feto protein concentration in the urine
c-prevalence
d-sensitivity
e-Specificity
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can anyone help me with an answer and an explanation,
Thank you
amer
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| mjl1717
Forum Hero
Topics: 955
Posts: 5,451
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all i know is that PPD value is somehow related to prevalence. 
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| robin082006
Forum Hero
Topics: 471
Posts: 5,125
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 C
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| surgery
Forum Junior
Topics: 0
Posts: 30
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c ??
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| netlover
Forum Junior
Topics: 3
Posts: 54
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It's C. Prevalence affects PPD
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| guest007
Forum Senior
Topics: 11
Posts: 106
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c becoz +ppd increase with prevalence and negative ppd decreases with higher prevalence......
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