A patient on the medical unit receives regular insulin at 7:00 a.m. The nurse is alert to a possible hypoglycemic reaction by which time?
a. 7:30 a.m.
b. 9:00 a.m.
c. 4:00 p.m.
d. 8:00 p.m.
B
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A Regular insulin has an onset in 30 minutes.
B Regular insulin reaches its peak in 2 to 3 hours after administration. If the patient received regular insulin at 7:00 a.m., the nurse should be alert for a possible hypoglycemic reaction from 9:00 a.m. to 10:00 a.m.
C Intermediate-acting insulin (e.g., NPH insulin), not regular insulin, would peak in 6 to 12 hours.
D The patient would not be at risk for a hypoglycemic reaction from regular insulin 13 hours after administration. Long-acting insulin would have an effect this much later after administration.
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