Correct Answer: C

Rationale: The correct answer is C: 'You will need to drink a bowel preparation solution the day before the test.' Before a colonoscopy, it is essential to cleanse the colon thoroughly by drinking a bowel preparation solution. This helps to ensure that the colon is clear for the procedure, allowing for better visualization and examination of the colon. Choices A, B, and D are incorrect because avoiding eating or drinking after midnight, having a light breakfast, and avoiding medications are not specific instructions related to the colonoscopy preparation process.

Correct Answer: B

Rationale: The correct answer is B. In diabetes management, complex carbohydrates should constitute the largest portion of the diet as they help in maintaining steady energy levels and managing blood sugar. Choice A is incorrect because a high-fat diet can lead to complications in diabetes. Choice C is incorrect as simple sugars can cause rapid spikes in blood sugar levels. Choice D is incorrect as protein, while important, should not be the main source of calories for a diabetic individual.

Correct Answer: B

Rationale: Postoperative arrhythmias are a common and potentially serious complication after cardiac surgery, making them a priority to monitor. Assessing for postoperative arrhythmias takes precedence over other assessments like checking nail beds for color and refill, auscultating for pulmonary congestion, or monitoring peripheral pulses as arrhythmias can have immediate and severe implications for the child's health.

Correct Answer: A

Rationale: Corrected Rationale: A low blood pressure of 90/60 mm Hg is a significant finding indicating fluid volume deficit. In fluid volume deficit, the body tries to compensate by increasing heart rate (choice B) to maintain cardiac output. Respiratory rate (choice C) may increase as a compensatory mechanism, but it is not the primary concern in fluid volume deficit. Urine output (choice D) may decrease in response to fluid volume deficit, but it is a late sign and not the most concerning finding.

Correct Answer: A

Rationale: A client with diarrhea should avoid consuming orange juice. Orange juice is high in sugar content, which can worsen diarrhea symptoms by drawing water into the intestines, potentially leading to further dehydration and discomfort. Tuna, eggs, and macaroni are generally well-tolerated and do not exacerbate diarrhea symptoms, making them more suitable food choices for individuals experiencing diarrhea.