A nurse is caring for a client who has a prescription for NPH insulin 20 units subcutaneous daily. The nurse should plan to administer this medication at which of the following times?

Choice A reason: Evening meal administration of NPH insulin risks nocturnal hypoglycemia, as its peak action (4–12 hours) occurs overnight. Morning dosing aligns with daily glucose patterns, making this incorrect. Choice B reason: Bedtime NPH insulin peaks during sleep, increasing hypoglycemia risk. Morning administration provides coverage during active hours, matching physiological needs, making bedtime an incorrect time. Choice C reason: NPH insulin, given in the morning before breakfast, peaks mid-day to evening, covering postprandial glucose rises. This aligns with type 1 diabetes management, making it the correct administration time. Choice D reason: Noon administration with lunch shifts NPH’s peak to evening, missing morning glucose rises. Morning dosing ensures optimal coverage, making noon an incorrect time for daily NPH insulin.