The nurse prepares to administer a scheduled dose of labetalol PO to a client with hypertension. The client's vital signs are a temperature of 99° F (37.2° C), a heart rate of 48 beats/minute, respirations of 16 breaths/minute, and a blood pressure of 150/90 mm Hg. Which action should the nurse take?

A) Assessing for orthostatic hypotension is important when administering medications that can lower blood pressure, but in this scenario, the vital signs indicate bradycardia (heart rate of 48 beats/minute), which may be a contraindication for administering labetalol. Therefore, withholding the dose and notifying the healthcare provider is the priority. B) Administering the dose and monitoring the client's blood pressure regularly could potentially worsen bradycardia and hypotension, especially given the client's current vital signs. It is safer to withhold the dose and seek guidance from the healthcare provider. C) Withholding the scheduled dose and notifying the healthcare provider is the most appropriate action in this situation. The client's bradycardia, along with the hypertension, raises concern about the safety of administering labetalol without further assessment and possible adjustment of the treatment plan. D) Applying a telemetry monitor may be warranted if the client's bradycardia is of concern, but it does not address the potential risk associated with administering labetalol to a client with a heart rate of 48 beats/minute. The priority is to withhold the medication and inform the healthcare provider for further evaluation and guidance.