ATI LPN
Test Bank for Medical Surgical Nursing: Concepts for Interprofessional Collaborative Care 10th Edition
Chapter 5 Questions
Question 1 of 5
A nurse is educating a client about genetic screening. The client asks why red-green color blindness, an X-linked recessive disorder noted in some of her family members, is expressed more frequently in males than females. How should the nurse respond?
Correct Answer: C
Rationale: Males have one X and one Y chromosome, so a single recessive allele on their X chromosome will express the disorder, as they lack a second X chromosome to potentially mask it. Females, with two X chromosomes, need both alleles to be recessive to express the disorder, making it less common in females.
Question 2 of 5
A nurse obtains health histories when admitting clients to a medical-surgical unit. With which client should the nurse discuss predisposition genetic testing?
Correct Answer: A
Rationale: A family history of breast cancer, especially at a relatively young age, indicates a potential risk for hereditary breast cancer, warranting discussion about predisposition genetic testing for genes like BRCA1/2. The pregnant woman's father having sickle cell disease suggests carrier testing, and the man of Eastern European Jewish ancestry may need carrier testing for conditions like Tay-Sachs, not predisposition testing.
Question 3 of 5
A client who tests positive for a mutation in the BRCA1 gene allele asks a nurse to be present when she discloses this information to her adult daughter. How should the nurse respond?
Correct Answer: D
Rationale: The nurse's role is to provide emotional support during such discussions, not to interpret results or counsel, which is the role of a genetic counselor. Offering support respects the client's needs and facilitates a sensitive conversation.
Question 4 of 5
A nurse consults a genetic counselor for a client whose mother has Huntington disease and is considering genetic testing. The client states, 'I know I want this test. Why do I need to see a counselor?' How should the nurse respond?
Correct Answer: B
Rationale: Genetic counseling provides education about the implications of testing, emotional support, and helps clients make informed decisions. It does not focus on advising about having children, determining testing benefits, or securing financial support.
Question 5 of 5
A health care provider prescribes genetic testing for a client who has a family history of colorectal cancer. Which action should the nurse take before scheduling the client for the procedure?
Correct Answer: A
Rationale: Informed consent is a legal and ethical requirement before genetic testing to ensure the client understands the procedure, risks, and implications. Providing counseling or respecting confidentiality are important but secondary to confirming consent.