Chapter 7 Maternal and Child Health Nursing 7th Edition

Chapter 7  Maternal and Child Health Nursing 7th Edition

Complete Chapter Questions And Answers
 

Sample Questions

1.
A female patient learns that she is the carrier of the X-linked recessive disease hemophilia A. Her spouse is free of the disease. What should the nurse teach the patient about the frequency of this disease in future children?
A)
All male children will inherit it.
B)
All female children will be carriers like she is.
C)
All male children will have a 50% risk to inherit the disease.
D)
All female children will have a 50% risk to inherit the disease.
Ans:
C

Feedback:

In X-linked recessive diseases such as hemophilia A, females who inherit the affected gene will be heterozygous, and, because a normal gene is also present, the expression of the disease will be blocked. But because males have only one X chromosome, the disease will be manifested in any male children who receive the affected gene from their mother. If the mother has the affected gene on one of her X chromosomes and the father is disease free, the chances are 50% a male child will manifest the disease and 50% a female child will carry the disease gene. All male children will not inherit the disease. All female children will not be a carrier of the disease. Females will not inherit the disease.

2.
A married couple is beginning genetic counseling. What should the nurse instruct the couple regarding expectations from this process? (Select all that apply.)
A)
The results will be provided to the couple only.
B)
The results will be provided as quickly as possible.
C)
The married couple makes the decision to participate in the process.
D)
Medically recommended procedures will be immediately scheduled.
E)
The married couple will sign informed consent forms for procedures.
Ans:
A, B, C, E

Feedback:

Legal responsibilities of genetic testing, counseling, and therapy include the results will not be withheld and given to the persons directly involved; the results will be provided as quickly as possible; participation in genetic screening is elective; and those desiring genetic screening must sign an informed consent for the procedures. After genetic counseling, persons are not to be coerced to undergo procedures; therefore, medically recommended procedures will not be immediately scheduled.

3.
Both people in a married couple carry the recessive gene for cystic fibrosis. When asked about the incidence of any children developing the disorder, what should the nurse respond?
A)
“There is no chance.”
B)
“There is a 1 in 4 chance.”
C)
“There is a 2 in 4 chance.”
D)
“There is a 3 in 4 chance.”
Ans:
B

Feedback:

In autosomal recessive inheritance, the disease will not occur unless both parents have recessive genes for the disorder. There is a 25% chance a child born to the couple will be disease and carrier free; a 50% chance the child will be, like the parents, free of disease but carrying the unexpressed disease gene; and a 25% chance the child will have the disease, or a 1 in 4 chance. With the recessive gene carried by both parents, the chances of children developing the disease are not 2 in 4, 3 in 4, or 0 in 4.

4.
The nurse is visiting a family who has a child with a genetic disorder. The oldest daughter in the family is planning marriage within the next few months. Which intervention should the nurse include that would support the 2020 National Health Goals for genetic disease?
A)
Counsel the daughter to have no children.
B)
Encourage the daughter to have genetic counseling.
C)
Discuss voluntary sterilization options prior to marriage.
D)
Explain that the chance of genetic anomalies in children is slim.
Ans:
B

Feedback:

To support the 2020 National Health Goals for genetic anomalies, the nurses can help achieve these goals by being sensitive to the need for and educating parents about genetic screening in preconceptual settings. This means that the nurse should encourage the daughter to have genetic counseling. It is outside of the nurse’s scope of practice to counsel the daughter to remain childless or undergo voluntary sterilization. The nurse would not know the daughter’s chances of having a child with a genetic disorder unless genetic testing is performed.

5.
A pregnant patient has been counseled to have an amniocentesis. For which genetic conditions should the nurse instruct the patient that this diagnostic test will detect?
A)
Impetigo
B)
Trisomy 21
C)
Diabetes mellitus
D)
Phenylketonuria
Ans:
B

Feedback:

Trisomy 21 or Down syndrome is the most common genetic disorder that can be detected through examination of amniotic fluid obtained through amniocentesis. Impetigo, diabetes mellitus, and phenylketonuria cannot be diagnosed through examination of amniotic fluid.