She wishes to discuss biochemical screening for Down’s syndrome.

1.  What does “sensitivity” mean in relation to this test?  

2.  What sensitivity does biochemical screening have for this patient?  

3.  What are the 3 main substances measured?    

 4.  List 4 important issues to include in counselling, other than “sensitivity”.  

 5.  Name two other methods of screening for Down’s syndrome risk.  

 6.  Name two other conditions that may be suggested by the test.