Correct Answer: D

Rationale: The correct answer is D, Serum immunoglobulin E (IgE) testing. This test can help diagnose food allergies, including milk protein allergies, in toddlers presenting with symptoms like skin rashes, hives, abdominal pain, and vomiting after consuming milk products. Skin allergy testing is used for allergies but may not be suitable for this age group due to developmental factors. Lactose intolerance, which is different from a milk allergy, is assessed through a lactose tolerance test, not IgE testing. A complete blood count (CBC) would not provide specific information related to food allergies.

Correct Answer: A

Rationale: The correct answer is A: Limit sodium intake to reduce fluid retention. Limiting sodium intake is crucial for managing congestive heart failure (CHF) as it helps reduce fluid retention. Excess fluid retention can worsen CHF by increasing the workload on the heart. Choice B is incorrect because while protein is essential for overall health, it is not directly related to managing CHF. Choice C is incorrect because potassium, although important, is not the primary focus in managing CHF. Choice D is incorrect because increasing fluid intake can exacerbate fluid retention in CHF patients.

Correct Answer: B

Rationale: The correct answer is B: 'Foods sweetened with aspartame.' Children with PKU must avoid foods containing aspartame because it breaks down into phenylalanine, which can worsen their condition. Choice A, fresh fruit and vegetables, are generally healthy and safe for individuals with PKU. Choice C, bread with honey, is also safe unless the bread contains artificial sweeteners like aspartame. Choice D, gluten-rich bread, is not specifically problematic for individuals with PKU unless it contains aspartame or other substances high in phenylalanine.

Correct Answer: D

Rationale: The correct answer is D because tasks like applying and caring for a client's rectal pouch are within the UAP's scope of practice, as they do not require clinical judgment. Choices A, B, and C involve more complex assessments or interventions that require clinical judgment and should be performed by licensed nursing staff.

Correct Answer: B

Rationale: The correct answer is B: Monitor the client's blood glucose levels. Clients with diabetes are at risk for perioperative complications related to blood glucose fluctuations. Monitoring blood glucose levels is crucial to maintaining proper management before, during, and after surgery. Option A is not the priority action as ensuring NPO status is a standard preoperative procedure for all clients. Option C could be important but is secondary to monitoring blood glucose levels. Option D is important but not the priority during the preoperative phase.