A nurse is reviewing a new prescription for alendronate 70 mg PO once per week upon waking to be taken 30 min before food, fluids, or medication with a client who has osteoporosis. The client is to remain upright for 30 min after administration. How should the nurse interpret this prescription for the client?

A. Choose the same day of each week to take this medication: Alendronate should be taken once weekly on the same day to maintain consistent therapeutic levels and promote adherence to the regimen. B. Over-the-counter oral preparations can be taken with this medication: Alendronate must be taken alone to prevent interactions that reduce absorption; no other meds or supplements should be taken simultaneously. C. Take the medication at 1800, 30 min after the evening meal: It must be taken in the morning upon waking, not in the evening, and on an empty stomach for best absorption. D. The client can return to bed after taking the medication, but before eating: Returning to bed too soon increases the risk of esophageal irritation; clients must stay upright for at least 30 minutes after taking it.