A nurse is caring for a client who is prescribed 15 units of NPH insulin to be administered at 0700. At which of the following times of day is most appropriate for the nurse plan to offer a snack?

A. 1500: NPH insulin is intermediate-acting with a peak several hours after administration (usually about 6–12 hours). A 0700 dose will often peak in the mid-to-late afternoon, so offering a snack at 1500 helps prevent hypoglycemia during the insulin peak. B. 1230: This is earlier than the usual NPH peak for a 0700 dose; it might help some patients but is less likely to coincide with the NPH peak than 1500. C. 0730: Too soon after a 0700 NPH injection - NPH has a delayed onset/peak, so a snack at 0730 is unnecessary and could cause hyperglycemia. D. 0900: Also early (about 2 hours post-dose) - not the typical NPH peak time, so not the most appropriate time to plan the snack.