Author Question: A nurse is counseling a client who is considering having genetic testing completed to determine ... (Read 114 times)

Kthamas · **on:** Jul 8, 2018

A nurse is counseling a client who is considering having genetic testing completed to determine whether she is a carrier of the gene linked to Huntington's disease.

Which of the following would be the first step the nurse would take when assessing this client?
a. Assess vital signs
b. Assess family history of this disorder
c. Assess client's past medical history
d. Assess current medications

Question 2

Which statement regarding mutations is true?

a. Mutations in the DNA sequence occur on a regular basis.
b. Mutagens are a result of a mutation.
c. Environmental factors can be linked to many mutations.
d. Spontaneous mutations occur because of environmental exposure.

wshriver · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: B
Taking a family history is a useful place to begin when considering a genetic connection prior to the onset of testing. The best way to identify whether there is a mutation in a family where a he-reditary disease is suspected is to test the person who displays the most evidence of being a mu-tation carrier. This would take precedent over assessing vital signs, current medications, and past medical history.

Answer to Question 2

ANS: C
A large number of agents are known to cause mutations. These mutations are attributed to known environmental causes. DNA replication is very accurate, thus, mutations do not occur on a regular basis. Mutagens are the factors that cause mutations. Spontaneous mutations occur naturally dur-ing DNA replication.