26.     Screening for Down's syndrome.

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MCQ Paper 4

Sample MCQs

 

a. combined 1st. trimester screening screens for all chromosomal abnormalities  
b. combined 1st. trimester screening screens for Down's syndrome but not neural tube defects  
c. it is best done at 12 - 14 weeks  
d. it is close to 100% accurate in detecting Down's syndrome  
e. it is based on the assay of maternal AFP, HCG and thyroid hormones  
f. it shows a unique pattern in the presence on Trisomy 18  
g. integrated screening has been the recommended method since April 2010  

 

Answer

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