A nurse is caring for a client with type 1 diabetes. The client's medication administration record includes the administration of Humulin-R (regular insulin or Novolin-R three times daily. Knowing that the client's lunch tray will arrive at 11:45 AM, when should the nurse administer the insulin?
10:45 AM
11:30 AM
11:50 AM
11:45 AM
The Correct Answer is A
A. 10:45 AM: Regular insulin has an onset of about 30 minutes to 1 hour. Administering it at 10:45 AM (about an hour before the meal) allows the insulin to start working just as glucose from the meal enters the bloodstream, helping to control the post-meal blood sugar rise effectively.
B. 11:30 AM: Administering insulin only 15 minutes before the meal may be too close to meal time. The insulin may start working slightly after glucose absorption begins, leading to a mismatch in timing, which can cause postprandial hyperglycemia (high blood sugar after eating). This timing is generally too short for regular insulin, which has a slower onset compared to rapid-acting insulins.
C. 11:50 AM: Administering insulin after the meal has started (or just as the tray arrives) is too late for regular insulin. Insulin action will be delayed, and blood glucose may rise significantly after eating before the insulin takes effect. This increases the risk of hyperglycemia.
D. 11:45 AM: Giving insulin exactly at meal time is also usually too late for regular insulin. Since regular insulin needs time to start working, waiting until the tray arrives delays insulin action relative to glucose absorption, risking high blood sugar spikes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. The nurse does not determine the presence or absence of mental illness; this is a medical assessment.
B. The spouse’s agreement is not required for the client’s consent; consent must come directly from the client if competent.
C. The nurse’s signature as a witness confirms that the client appears competent and voluntarily signs the consent form.
D. It is the provider’s responsibility, not the nurse’s, to explain the risks and benefits of the procedure.
Correct Answer is A
Explanation
A. Dyspnea is a common sign of fluid overload, especially in clients with heart failure.
B. Gastrointestinal bloating is not a typical manifestation of fluid overload.
C. Weight loss indicates fluid loss, not overload.
D. A blood pressure of 120/80 is normal and does not indicate fluid overload.
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