Deck 10: Prenatal Testingscreening

Question 1

Genetic testing has revealed a situation of misidentified paternity.How should the health care team plan to address this issue?

A)Do not reveal this information.
B)Discuss the information with the mother alone.
C)Privately tell the man he is not the child's father.
D)Do not report any genetic screening results as they are incomplete.

Answer 1

Discuss the information with the mother alone.

Question 2

At a woman's first prenatal appointment,the nurse draws blood for prenatal screening that includes genetic testing.What information should the nurse provide?

A)"These are just the routine tests we draw on all pregnant women."
B)"This sample will tell us about your current health and whether we need to watch for any genetic conditions in your baby."
C)"We'll talk more about these tests when the results are back."
D)"Don't worry about this testing.It almost always comes back normal."

Answer 2

"This sample will tell us about your current health and whether we need to watch for any genetic conditions in your baby."

Question 3

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.

Answer 3

The sensitivity of this test varies widely among population groups.
This test is a screen and more testing will be required.
CF has many manifestation levels.
This test only screens for more common selected mutations.

Question 4

The partners in a family practice clinic have elected to offer preconception health counseling.What would be the rationales for this decision?

A)Women are much more interested in the health of their babies than in previous generations.
B)Women may be pregnant for several weeks before recognizing it.
C)Many pregnancies are unplanned.
D)Preconception education could become a part of routine office visits.
E)Preconception screening would allow the client to make informed decisions about childbearing.

Question 5

An unmarried couple gives birth to an infant with achondroplasia.The mother says,"Neither of our families has ever had anything like this happen before." What should be the nurse's initial response?

A)"Are you certain your boyfriend is the baby's father?"
B)"Achondroplasia often occurs in families who have no prior history."
C)"There must be someone in the family who is a carrier."
D)"Does your family have a history of early miscarriage?"

Question 6

A client's prenatal testing is positive and additional testing is necessary.Which information should the nurse provide about amniocentesis and chorionic villus sampling?

A)More information can be obtained through amniocentesis than from chorionic villus sampling.
B)The amniocentesis can be done in the middle of the first trimester.
C)Chorionic villus sampling cannot be done as early as amniocentesis.
D)Amniocentesis causes greater risk to the fetus than chorionic villus sampling does.

Question 7

Genetic testing reveals that a fetus is very likely to have Down syndrome.How should the health care team approach the parents?

A)"We have bad news about the test results."
B)"We hate to tell you this,but your child has a serious genetic disorder."
C)"Your baby has a bad defect."
D)"Your baby likely has Down syndrome."
E)"Preliminary tests suggest your baby has Down syndrome."

Question 8

The parents of a child with a serious genetic illness tell the nurse they plan to conceive another child so that stem cells will be available for treatment.What information should the nurse provide?

A)The infant may not be a transplant match for the ill child.
B)This action can result in a serious legal issue for the parents.
C)The infant may also have the genetic disorder.
D)The donation of the infant's stem cells cannot be specifically directed to any person.
E)This is a unique and wonderful plan.

Question 9

A 42-year-old woman is pregnant for the first time.She says,"I don't want any prenatal genetic testing.I don't want to know." How should the nurse respond?

A)Try to convince her to consider testing.
B)Do not tell her that some genetic testing is done with routine prenatal testing.
C)Support this choice if it is an informed decision.
D)Work with social services to get a court order for testing.

Question 10

A client has severe manifestations of an autosomal dominant disorder.The client's father is also affected by the disorder,but to a lesser degree.How would the nurse interpret this phenomenon?

A)The mother must have an unexpressed form of the disorder.
B)In this situation the child usually manifests the disorder at an older age than did the parent.
C)This situation is an example of genetic anticipation.
D)Environmental influences must have exacerbated the expression of the genetic tendency in the child.

Question 11

A genetics specialist tells a family that their child's disorder occurred due to uniparental disomy.The nurse would consider which information before explaining this information to the parents?

A)The disorder is Mendelian dominant.
B)One of the parents carries the gene for the condition.
C)Both parents carry a gene for the disorder.
D)The child received two alleles from the same parent.
E)Uniparental disomy is also known as imprinting.

Question 12

A client says,"I don't know how they can think my baby has Down syndrome when all they've done is routine testing and an ultrasound." How should the nurse respond to this statement?

A)"The ultrasound can show the distinctive loss of curve in the spine that indicates Down syndrome."
B)"The prenatal blood test you had is a definitive test for Down syndrome."
C)"The ultrasound shows a difference in the neck that confirms the suspicion of Down syndrome."
D)"The combination of the ultrasound and blood test results confirms the suspicion of Down syndrome,but more testing will be done."

Question 13

Prenatal testing reveals a genotype associated with mental retardation.What information should the nurse consider when talking with the parents?

A)The changes in genotype indicate the child will have serious developmental delays.
B)Genetic testing is often not accurate.
C)The genotype cannot accurately describe the child's phenotype.
D)Phenotype is not dependent on genotype.

Question 14

The nurse is drawing blood for a prenatal triple screen.How should the nurse explain this test to the client?

A)"The triple screen test looks at levels of three substances in your blood that would indicate we need to do additional testing."
B)"This test will be run three times for accuracy."
C)"This test screens for triplets."
D)"This is the first of three tests you will have,so it is called a triple screen."

Question 15

The nurse has been asked to participate in a program of population-based screening.The nurse should consider which information prior to making a decision about this request?

A)The clients being screened will have the disorder being studied.
B)A purpose of this screening is to identify persons at high risk for this disorder.
C)This outreach may identify persons who have not yet sought treatment for the disorder.
D)Current population screening recommendations are broad-based.
E)Population-based screening includes an ethical obligation for follow-up and intervention.