A male newborn is diagnosed with polycystic kidneys which requires autosomal dominant transmission.One of the parents is believed to have this genetic disease.
The nurse's teaching should be based on the fact that with autosomal dominant inheritance:
50% of the offspring have a chance of developing the disease from the affected parent.
Diseases are transmitted from a carrier mother to her son.
All of the offspring will develop the disease.
50% of the offspring will be carriers of the disease from the affected parent.
The Correct Answer is A
Choice A rationale
50% of the offspring have a chance of developing the disease from the affected parent. Autosomal dominant inheritance means that a single copy of the altered gene in each cell is sufficient to cause the disorder. Thus, each child of an affected parent has a 50% chance of inheriting the condition.
Choice B rationale
Diseases transmitted from a carrier mother to her son typically describe X-linked recessive inheritance, not autosomal dominant. In autosomal dominant conditions, both males and females can be affected, and it doesn't depend on the sex of the parent transmitting the gene.
Choice C rationale
All of the offspring will develop the disease is incorrect. In autosomal dominant inheritance, there is a 50% chance of passing the altered gene to the offspring, not 100%.
Choice D rationale
50% of the offspring will be carriers of the disease from the affected parent is incorrect for autosomal dominant inheritance. There are no "carriers" in autosomal dominant diseases; individuals either have the disease or they don't, based on whether they inherit the altered gene.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.7"]
Explanation
Step 1: 2 mg/kg × 3400 g × (1 kg ÷ 1000 g) = 0.68 mg
Step 2: 68 mg × (1 mL ÷ 0.4 mg) = 1.7 mL.
The nurse will administer 1.7 mL.
Correct Answer is A
Explanation
Choice A rationale
Iron needs significantly increase during pregnancy to support the increased blood volume, the formation of the placenta, and the growth of the fetus. Pregnant women often require additional iron to prevent anemia and ensure adequate oxygen transport to the baby.
Choice B rationale
While calcium requirements do increase during breastfeeding to support milk production, this statement is not directly related to the nutritional needs during pregnancy. The focus during pregnancy should be on adequate intake of nutrients that support both maternal and fetal health.
Choice C rationale
Vitamin E requirements do not decline during pregnancy. In fact, the need for antioxidants like vitamin E may increase to protect both the mother and developing fetus from oxidative stress.
Choice D rationale
While prenatal vitamins are important for meeting various nutritional needs during pregnancy, they do not always provide sufficient vitamin D. Some women may need additional supplementation based on their dietary intake, sun exposure, and individual health needs.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.