1.2.14 CF testing

Question 1

Where do CF sufferers have a high concentration of salt?

Answer 1

In their sweat

Question 2

What do CF sufferers have high levels of in their blood?

Answer 2

The protein trypsinogen

Question 3

What happened in 1989 which lead to the possibility of genetic testing?

Answer 3

The gene that codes for the CFTR protein was sequenced

Question 4

What can genetic testing be used for?

Answer 4

Either to confirm a diagnosis or to identify a carrier

Question 5

What is amniocentesis?

Answer 5

A needle is inserted to collect amniotic fluid, which contains cells of placental tissue

Question 6

What is the disadvantage of amniocentesis?

Answer 6

0.5%-1% chance of miscarriage

Question 7

What is Chronic Villis Sampling (CVS)?

Answer 7

A small sample of placental tissue is removed to test. It is taken either from the abdomen or through the vagina

Question 8

What is the disadvantage of CVS?

Answer 8

1% - 2% chance of miscarriage

Question 9

What is PIGD?

Answer 9

PIGD is the testing of an embryo before implantation

Question 10

What is a disadvantage of PIGD?

Answer 10

It is done using IVF, which is very expensive