Correct Answer: D

Rationale: In this scenario, the nurse should provide the client with oral swabs to moisten his mouth. This intervention helps alleviate the client's thirst without increasing fluid intake, which is essential in managing AKI. Removing all sources of liquids from the client's room (Choice A) may not address the underlying issue of thirst and could lead to increased frustration. Allowing the family to give the client ice chips (Choice B) would add to the client's fluid intake, contradicting the restriction. Restricting family visiting (Choice C) is not necessary and does not directly address the client's thirst.

Correct Answer: B

Rationale: The correct answer is B: Sudden confusion and difficulty speaking. These are classic signs of a stroke, indicating a neurological deficit that requires urgent medical attention. Choices A, C, and D are less indicative of a stroke. Chest pain is more commonly associated with cardiac issues, gradual onset of weakness in the legs could be related to other conditions like peripheral neuropathy, and nausea/vomiting may suggest gastrointestinal problems rather than a stroke.

Correct Answer: B

Rationale: The ABG results show a low pH (acidosis) and increased pCO2, indicating respiratory acidosis. In respiratory acidosis, the lungs cannot remove enough CO2, leading to its accumulation in the blood. This often occurs in conditions like COPD and is consistent with the patient's smoking history. Metabolic acidosis (choice A) is characterized by low pH and low HCO3 levels. Metabolic alkalosis (choice C) is marked by high pH and high HCO3 levels. Respiratory alkalosis (choice D) presents with high pH and low pCO2.

Correct Answer: B

Rationale: When assessing a child with recurrent abdominal pain (RAP), constipation is a common symptom. Children with RAP often experience periumbilical pain that is unrelated to eating, defecation, or exercise. While increased temperature, right quadrant pain, and exercise-associated pain can occur in various conditions, they are not typically associated with RAP in children.

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.