Correct Answer: A

Rationale: Increased lethargy is a sign of worsening intracranial pressure, which can be life-threatening in clients with brain injuries. As ICP rises, it can lead to decreased level of consciousness, such as lethargy or even coma. Choices B, C, and D are not indicative of increased ICP. A normal respiratory rate, response to verbal stimuli, and equal reactive pupils do not specifically point towards increased intracranial pressure.

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: Blurry vision in clients with type 1 diabetes may indicate hyperglycemia, which requires prompt assessment of recent blood glucose levels to determine the cause and appropriate intervention. Checking the client's hemoglobin A1C level (Choice B) is useful for assessing long-term glucose control, not for immediate management of blurry vision. Monitoring blood pressure (Choice C) is important in diabetes care but is not the most crucial assessment when blurry vision is reported. Examining the client's feet for signs of neuropathy (Choice D) is important in diabetic foot care but is not the priority when dealing with blurry vision.

Correct Answer: B

Rationale: Erythropoietin therapy stimulates red blood cell production in clients with chronic kidney disease. Hemoglobin levels should be monitored to assess the effectiveness of the therapy and ensure the client is not developing anemia. Increased hemoglobin levels indicate successful treatment, whereas very high levels may suggest erythropoietin is overcorrecting the anemia. Monitoring the white blood cell count is not directly related to erythropoietin therapy for anemia. Serum creatinine level is used to assess kidney function rather than the effectiveness of erythropoietin therapy. Platelet count is not typically affected by erythropoietin therapy and is not a key indicator of its effectiveness.

Correct Answer: C

Rationale: The correct answer is C: 'Check for bowel movement and changes in stool.' Intussusception can cause obstruction in the bowel, leading to symptoms like abdominal pain, vomiting, and 'currant jelly' stools. Monitoring for changes in bowel movement, especially the passage of 'currant jelly' stools, is crucial for early detection of worsening conditions. Choices A, B, and D are important assessments in pediatric care but are not as specific or crucial as checking for changes in bowel movement in a child diagnosed with intussusception.