A Client's Prenatal Testing Is Positive for Cystic Fibrosis (CF)

A client's prenatal testing is positive for cystic fibrosis (CF) .Prior to discussing the results with the family,the nurse should consider which information about this test?

A) The sensitivity of this test varies widely among population groups.
B) This test is a screen and more testing will be required.
C) CF has many manifestation levels.
D) The CF carrier status is rare in the United States.
E) This test only screens for more common selected mutations.