Correct Answer: B

Rationale: The correct approach for assessing the quality of an adult client's pain is to ask the client to describe the pain. By doing so, the nurse gains valuable information about the quality, location, and nature of the pain directly from the client. This approach allows for a more comprehensive understanding of the pain experience. Choice A, asking the client to rate the pain on a scale of 1 to 10, focuses more on intensity rather than quality. Choice C, observing the client's nonverbal cues, can provide additional information but may not fully capture the client's subjective experience of pain. Choice D, determining the client's pain tolerance, is not directly related to assessing the quality of pain but rather to how much pain a client can endure.

Correct Answer: D

Rationale: Following surgical repair of a cleft palate, a cup should be used to prevent injury to the suture line. Utensils such as straws, spoons, droppers, and syringes should be avoided as they can cause trauma to the surgical site. Using a cup reduces the risk of disrupting the sutures and promotes proper healing.

Correct Answer: B

Rationale: The correct early sign of varicella disease is general malaise. During the prodromal period, patients may experience low-grade fever, malaise, and anorexia. Increased appetite and crusty sores are not typically early signs of varicella. The appearance of lesions occurs later in the course of the disease.

Correct Answer: A

Rationale: The correct answer is A: 'There is an extra chromosome on the 21st pair.' Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21. This additional genetic material leads to the characteristics associated with Down syndrome. Choices B, C, and D are incorrect because Down syndrome is not due to a missing chromosome or having two pairs of the 21st chromosome; it results from the presence of an extra chromosome on the 21st pair.

Correct Answer: D

Rationale: Referral for a skin biopsy is necessary to rule out potential malignancy of irregular skin lesions. Applying a topical antibiotic ointment (Choice A) is not indicated for irregular pigmented lesions. Monitoring the lesions for changes (Choice B) may delay appropriate intervention if malignancy is present. Advising the client to use sunscreen (Choice C) is important for sun protection but is not the priority when irregular lesions are present.