Chapter 8: Overview of Genetics and Genomics in Nursing - Nurselytic

Correct Answer: C

Rationale: Physical assessment may provide clues that a particular genetic condition is present. For neurofibromatosis type 1, skin findings like caf-au-lait spots are a key indicator. Increased urination might suggest diabetes, projectile vomiting could indicate pyloric stenosis, and xanthomas are associated with hyperlipidemia, not neurofibromatosis.

Correct Answer: D

Rationale: The nurse must honor the patient's wishes while explaining the potential benefit this information may have for other family members. Breaching confidentiality by contacting siblings or their physicians is unethical. Involving a geneticist may be helpful, but the primary action is to respect the patient's confidentiality while encouraging disclosure.

Correct Answer: A

Rationale: When two carrier parents have children together, they have a 25% chance of having a child who inherits the gene mutation from each parent and who will have the condition, as in autosomal recessive inheritance. The other percentages are incorrect for this inheritance pattern.

Correct Answer: C

Rationale: Women who are 35 years of age or older have an increasing chance of giving birth to infants with chromosomal differences, such as trisomy 21. For this reason, genetic counseling and prenatal testing are recommended for all pregnant women above this age.

Correct Answer: D

Rationale: The provision of genetic counseling, evaluation, and testing for the disease is essential in care, especially given the family history of Huntington disease. This encompasses assessing risks to offspring and addressing symptoms, making it the most comprehensive option.