Correct Answer: D

Rationale: The correct answer is D: Squeezing a ball. The first exercise that should be done by a client with a mastectomy is squeezing a ball. This helps in regaining strength and mobility in the affected area. Choices A, B, and C are incorrect as they are not typically the initial exercises recommended post-mastectomy. Walking the hand up the wall, sweeping the floor, and combing hair are activities that may be introduced later in the rehabilitation process.

Correct Answer: C

Rationale: The correct action when cleaning an infant's teeth is to use water and a cotton swab to gently rub the teeth. This method helps in removing any food particles or plaque buildup without the risks associated with toothpaste ingestion. Using a small amount of toothpaste and a soft-bristle toothbrush is not recommended for infants as they may swallow the toothpaste, leading to potential fluoride ingestion issues. Using diluted fluoride and rubbing the teeth with a soft washcloth is unnecessary at this age since infants typically receive fluoride through other sources like formula. Dipping the infant's pacifier in maple syrup is highly inappropriate and poses a significant risk of tooth decay due to the high sugar content, which can harm the infant's teeth.

Correct Answer: B

Rationale: Seeking consensual validation is the correct answer. Consensual validation is a technique used to check one's understanding of what the client has said. It involves confirming with the client whether the nurse's interpretation aligns with the client's feelings or thoughts. This process helps build rapport, trust, and a shared understanding between the nurse and the client. Verbalizing the implied (choice A) refers to expressing the underlying or implicit meaning of a client's statement. Encouraging evaluation (choice C) involves prompting the client to assess or judge a situation. Suggesting collaboration (choice D) entails proposing working together with the client on a shared goal, which is not the primary focus in the scenario provided.

Correct Answer: C

Rationale: The least helpful question in obtaining information regarding intussusception is "Describe his usual diet."? This question is least relevant to the specific symptoms and presentation of intussusception. Choices A, B, and D are more directly related to symptoms commonly associated with intussusception and can provide important diagnostic clues. Asking about pain, vomit appearance, and changes in abdominal size can help in assessing the severity and progression of the condition, making them more crucial questions to ask in this scenario. Pain is a cardinal symptom of intussusception, changes in vomit appearance may indicate gastrointestinal issues, and alterations in abdominal size can signify the presence of a mass or obstruction, all of which are pertinent in diagnosing and managing intussusception.

Correct Answer: D

Rationale: Xerostomia is dry mouth, a common side effect in cancer patients. Providing a saliva substitute helps alleviate the discomfort associated with dry mouth by moistening the oral mucosa. Offering hard candy, as mentioned in choice A, can worsen xerostomia by increasing sugar content and potentially causing irritation. Administering analgesic medications, as in choice B, is not directly related to treating dry mouth. Splinting swollen joints, as in choice C, is irrelevant to xerostomia, which primarily affects the oral cavity.