Correct Answer: C

Rationale: The most important instruction for the nurse to provide to a client scheduled for a colonoscopy and prescribed a bowel preparation is to take the entire bowel preparation as directed. Completing the entire bowel preparation as prescribed is crucial to ensure the colon is properly cleansed for the colonoscopy. Incomplete bowel prep can interfere with the visualization of the colon, leading to inaccurate results. Choices A, B, and D are important but not as crucial as ensuring the complete intake of the bowel preparation for an effective procedure.

Correct Answer: A

Rationale: The correct answer is A: 'Monitor the client's hemoglobin and hematocrit.' When a client with chronic kidney disease is prescribed erythropoietin, the nurse's priority action is to monitor the client's hemoglobin and hematocrit. Erythropoietin stimulates red blood cell production, so monitoring these lab values helps evaluate the effectiveness of erythropoietin in treating anemia. Monitoring the client's blood pressure (choice B) is important but not the priority in this scenario. Assessing the client for signs of infection (choice C) is important but not the priority related to the prescription of erythropoietin. Monitoring the client for signs of bleeding (choice D) is relevant but not the priority action when erythropoietin is prescribed.

Correct Answer: C

Rationale: Engaging the child in blowing out the penlight simulates play and can reduce fear, helping with cooperation during the assessment. Choice A is not recommended as it may increase anxiety by separating the child from the parent. Choice B is not appropriate as it involves playing with a syringe, which may not be safe or suitable. Choice D is not ideal for a 4-year-old child as understanding organ functions may be beyond their developmental level.

Correct Answer: A

Rationale: The correct answer is A. Infections, like a cold and ear infection, increase the body's metabolic needs and insulin resistance, making diabetic ketoacidosis (DKA) more likely. While missing insulin doses or not following dietary restrictions can trigger DKA, an illness is the most common precipitating factor in pediatric Type 1 diabetes. Option B is less likely as missing insulin can lead to hyperglycemia but might not be the immediate cause of ketoacidosis. Option C can contribute to DKA over time, but the acute trigger is usually an illness. Option D, overexertion during exercise, is less likely to cause DKA compared to an infection.

Correct Answer: B

Rationale: Assessing for dyspnea or stridor is crucial as these are signs of airway compromise, which is a priority concern in burns involving the face. Burns on the face can lead to airway swelling or compromise due to airway proximity, making respiratory assessment the top priority. Covering the areas with dry sterile dressings, initiating intravenous therapy, and administering pain medication are important interventions but assessing for airway issues takes precedence in this situation.