A nurse cares for a client with chronic obstructive pulmonary disease who has been prescribed continuous oxygen therapy at home. Which statement indicates the client correctly understands the teaching?

Correct Answer: C

Rationale: The correct answer is C because using cotton balls to cushion the oxygen tubing on the ears helps prevent skin irritation or pressure ulcers. This indicates the client understands the importance of skin care and comfort while using oxygen therapy. A: Incorrect. The client should wear oxygen during all activities that increase oxygen demand, not just when feeling short of breath during exercise. B: Incorrect. Using portable oxygen near an open flame like a grill can result in a fire hazard. D: Incorrect. Smoking while using oxygen therapy is extremely dangerous and can lead to a fire.

Correct Answer: C

Rationale: Rationale: C is correct because AAT deficiency increases the risk of COPD, especially with smoking. This response provides accurate information regarding the client's health risk. A is incorrect as it specifically mentions children rather than the client's own risk. B is incorrect as it focuses on genetic counseling rather than addressing the client's question. D is incorrect as it inaccurately states that the gene does not affect health.

Correct Answer: C

Rationale: Rationale: C is correct because it encourages genetic testing for both the client and their partner to assess the risk of passing on the cystic fibrosis gene. This approach provides the necessary information for informed decision-making regarding family planning. A is incorrect because being a carrier does not guarantee that the children will also be carriers. B is incorrect as it inaccurately states that if the client is a carrier, their children will have the disorder. D is incorrect because it oversimplifies the etiology of cystic fibrosis and suggests dietary adjustments as a solution, which is not effective in managing the genetic condition.

Correct Answer: A

Rationale: The correct answer is A: Would you like information about advance directives? This is the appropriate response as it addresses the client's concerns about becoming a vegetable and explores their wishes for end-of-life care. Advance directives can help the client make decisions about their care in case they are unable to communicate in the future. The other choices are incorrect because B assumes the client needs psychiatric evaluation, C suggests removing them from the transplant list without exploring their concerns further, and D focuses on spiritual support rather than addressing the client's specific worries about their quality of life post-transplant.

Correct Answer: B

Rationale: The correct answer is B because assessing the client's ability to walk upstairs without fatigue helps determine the extent of heart failure. This question assesses the client's functional capacity and exercise tolerance, which are key indicators of heart failure severity. If the client experiences fatigue while walking upstairs, it indicates decreased cardiac output and potential heart failure progression. Other choices are incorrect as they focus on symptoms (A), nocturnal dyspnea (C), and peripheral edema (D), which may be present in heart failure but do not directly assess the extent of heart failure like exercise tolerance does.