The nurse is assisting with genetic counseling for a couple in which the mother has a rare autosomal dominant condition, and the father does not have the condition. Which of the following statements by the nurse is most accurate?

“With each pregnancy, your child has at least a 50% chance of having the condition.”. The genotype of an individual with a rare autosomal dominant condition can be denoted by the letters “Aa” (heterozygous) or “AA” (homozygous). Only one capital A is required to have the disease (assuming full penetrance). Unaffected individuals would have a genotype “aa.” A Punnett Square can be created which reveals possible offspring for Aa x aa and would have genotypes “Aa” (50%) or “aa.” (50%). These are interpreted as the risk for each pregnancy - the offspring has a 50% chance of inheriting the condition and 50% of not inheriting the condition. For AA x aa, the offspring has a 100% chance of having the disease. Therefore, the most accurate statement is to say that the child has at least a 50% chance of having the condition with each pregnancy. It is inaccurate to say that 50% of their offspring will definitely have the condition. Additionally, because the condition is autosomal dominant, 25% chance of inheriting is inappropriate.

The nurse is assisting with genetic counseling for a couple in wh...

Category: Reduction of Risk Potential
Difficulty: 7

Topics: Disease Prevention Genetics Health Screening

Want help? View the answer with rationale.

Additional Reduction of Risk Potential Questions

A patient comes into the ER with HR 122 bpm, BP 110/72 mm Hg, Temp 99.4 F, and RR 22. They report a racing feeling in their heart and have also been experiencing diarrhea for the last several months. Which lab result does the nurse anticipate?

Question Type: Multiple Choice - Select One
Difficulty: 5

The 20-year-old student went on a mission trip to Ghana to help at a local hospital. She presented to the clinic 12 days after her return; she began to experience anorexia, flu-like symptoms, and fatigue. Ten days later, she noticed her eyes and skin looked yellow. Her history, assessment, and vitals are within normal limits except her yellow sclera and jaundiced skin. Initial lab studies reveal a total bilirubin of 16, indirect bilirubin of 8, AST of 1320 and ALT of 1400. The nurse prepares the patient for which test next?

Question Type: Multiple Choice - Select One
Difficulty: 9

Following colon resection, the nurse is vigilant for which early symptoms of septic shock? Select all that apply.

Question Type: Multiple Choice - Select All
Difficulty: 6

Show Calculator

Want help? View the answer with rationale.

Rationale

Additional Reduction of Risk Potential Questions

Nursing Careers

Nursing Degrees

NCLEX