A 66-year-old woman with suspected atrial fibrillation wants to know why she is being asked to wear a Holter monitor for 24 hours. Which of the following is the appropriate response?

Choice A reason: This response is vague and lacks educational value. It does not explain the purpose of the Holter monitor or the clinical reasoning behind its use. Choice B reason: While accurate, this response is overly formal and may be difficult for a patient to understand. It focuses on guidelines rather than the patient’s specific situation and diagnostic needs. Choice C reason: This response provides a clear, patient-centered explanation. It informs the patient that a standard ECG was inconclusive, and the Holter monitor is necessary to obtain continuous data to accurately diagnose atrial fibrillation, helping the patient understand the rationale and importance. Choice D reason: This statement is dismissive and minimizes the patient’s concern. It does not explain the clinical purpose of the test and could lead to misunderstanding or anxiety.