A client with benign prostatic hyperplasia receives a new prescription of tamsulosin. Which intervention should the nurse perform to monitor for an adverse reaction?

A. Perform a bladder scan: This intervention is useful for assessing urinary retention or post-void residual volumes but is not specifically related to monitoring the adverse effects of tamsulosin. B. Obtain daily weights: Daily weights are typically used to monitor fluid balance and signs of fluid retention, not specifically for adverse reactions to tamsulosin. C. Assess urine output: While monitoring urine output can be important in managing BPH, it is not specifically targeted to identify adverse reactions to tamsulosin. D. Monitor blood pressure: Tamsulosin, an alpha-1 blocker, can cause orthostatic hypotension (a drop in blood pressure when standing up) and dizziness. Monitoring blood pressure helps detect this potential adverse effect, ensuring the client is not experiencing significant drops in blood pressure.