The nurse monitors the blood glucose level of the client who received NPH insulin at 7 AM with an understanding that the client may experience a hypoglycemic reaction between:
1. 9 to 11 AM
2. 1 to 7 PM
3. 7 to 11 PM
4. Midnight to 6 AM
2
Rationale: NPH insulin is an intermediate-acting insulin. It peaks in 6 to 12 hours after administration. (Its onset is in 1 to 2 hours, and its duration is 18 to 24 hours.) If the medication was given at 7 AM, the nurse would monitor for hypoglycemia during the time of peak action, which would be between 1 and 7 PM.
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