A woman and man have the following genotypes for an autosomal dominant disease: Aa and Aa. If asked, which of the following should the nurse say is the probability of their child having the disease?
- A. 25% probability.
- B. 50% probability.
- C. 75% probability.
- D. 100% probability.
Correct Answer: C
Rationale: The probability of their child having the disease is 75% because both parents are carriers (Aa). The possible genotypes for the child are AA, Aa, aA, and aa. Only the aa genotype would not result in the disease, giving a 75% chance of the child having the disease.
You may also like to solve these questions
Which aspect of fetal diagnostic testing is most important to expectant parents?
- A. Safety of the fetus
- B. Duration of the test
- C. Cost of the procedure
- D. Physical discomfort caused by the procedure
Correct Answer: A
Rationale: The correct answer is A: Safety of the fetus. Expectant parents prioritize the safety of their unborn child above all else. Ensuring that the fetal diagnostic testing is safe for the fetus is crucial in making informed decisions about the pregnancy. Other choices are less important as safety directly impacts the well-being of the fetus, while the duration, cost, and physical discomfort are secondary considerations in comparison.
A client’s vital signs during labor and delivery were: BP 100/58–110/66, T 98.6ºF–98.8ºF, P 72–80 bpm, R 20–24 rpm. The client’s vitals 2 hours postpartum are BP 100/56, TPR 99.4ºF, P 70 bpm, R 20 rpm. Which of the following actions should the nurse perform at this time?
- A. Check the client’s lochia flow.
- B. Ask the client if she is having chills.
- C. Encourage the client to drink fluids.
- D. Assess the client’s lung fields.
Correct Answer: A
Rationale: Checking the client’s lochia flow is important to ensure there is no excessive bleeding, which could indicate postpartum hemorrhage.
A certified nursing assistant (CNA) is working with a registered nurse (RN) in the neonatal nursery. It would be appropriate for the nurse to delegate which of the following actions to the assistant?
- A. Admission assessment on a newly delivered baby.
- B. Patient teaching of a neonatal sponge bath.
- C. Placement of a bag on a baby for urine collection.
- D. Hourly neonatal blood glucose assessments.
Correct Answer: C
Rationale: CNAs can perform tasks such as placing a urine collection bag, which does not require advanced assessment or teaching skills. Admission assessments and blood glucose monitoring require the expertise of an RN.
A fetal fibronectin assessment of the cervicovaginal fluids of a 28-week gravida is positive. Based on the results, which of the following complaints should the nurse advise the client to report immediately to the health care provider?
- A. Headache.
- B. Visual disturbances.
- C. Uterine cramping.
- D. Oliguria.
Correct Answer: C
Rationale: Uterine cramping may indicate preterm labor, which is a concern with a positive fetal fibronectin test.
The nurse would be concerned that a 26-week-gravid client is carrying an unwanted pregnancy when the client makes which of the following statements?
- A. The baby hasn't started to move yet.'
- B. My back aches every night when I get home from work.'
- C. I am finding it very hard always to eat the right things.'
- D. I am no longer able to wear my old clothes.'
Correct Answer: A
Rationale: Lack of fetal movement at 26 weeks could indicate a problem with the pregnancy or that the client is not emotionally connected to the pregnancy, suggesting it may be unwanted.