A nurse is performing an admission assessment for a client who is to undergo a colonoscopy. The client informs the nurse that he took his prescribed medications before coming to the clinic. Which of the following medications is the priority to report to the provider?

Choice A reason: Metoprolol is a beta-blocker used for hypertension and cardiac conditions. While it can affect heart rate and blood pressure, it does not pose a direct procedural risk during colonoscopy. Continuing metoprolol is generally safe and often recommended to avoid rebound hypertension. Choice B reason: Clopidogrel is the correct answer because it is an antiplatelet medication that increases the risk of bleeding during invasive procedures such as colonoscopy, especially if polypectomy or biopsy is performed. Reporting this to the provider is a priority so that the risk can be managed, and the procedure can be delayed or adjusted if necessary. Choice C reason: Metformin is used for diabetes management. While it can cause lactic acidosis in rare cases, especially with contrast studies, it does not pose an immediate risk during colonoscopy. It is not the priority medication to report. Choice D reason: Digoxin is used for heart failure and arrhythmias. Although digoxin requires monitoring for toxicity, it does not directly increase procedural risk during colonoscopy. It is important but not the priority in this scenario.