NCLEX PN Exam Bank Insulin Types and Diabetes
Medication Management
Table of Contents
Subtopic 1: Insulin Types, Onset, Peak, and Duration ....................................................... 2
Subtopic 2: Oral Antidiabetic Medications and Mechanisms of Action .............................. 9
Subtopic 3: Insulin Administration Techniques and Safety .............................................. 17
Subtopic 4: Hypoglycemia and Hyperglycemia Management in Diabetic Patients ............ 25
Subtopic 5: Diabetes Medication Interactions and Contraindications (Questions 81–100) 33
Subtopic 6: Pediatric and Geriatric Considerations in Diabetes Medication Management . 42
Subtopic 7: Oral Antidiabetic Agents and Non-Insulin Injectables – Mechanisms, Use, and
Monitoring (Questions 121–140) ................................................................................... 50
Subtopic 8: Emergency Diabetes Management – Hypoglycemia, DKA, and HHS .............. 59
Subtopic 9: Managing Comorbidities in Diabetic Patients – Cardiovascular, Renal, and
Neurological Considerations ....................................................................................... 67
SUBTOPIC 10: Diabetes Medication Education, Communication, and Interdisciplinary
Collaboration ............................................................................................................. 75
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Subtopic 1: Insulin Types, Onset, Peak, and Duration
Questions 1–20
1. A nurse is teaching a patient about rapid-acting insulin. Which of the following
statements by the patient indicates understanding?
A. "I should take it at bedtime."
B. "It works best if I take it 1 hour before eating."
C. "I need to eat immediately after injecting it."
D. "This type of insulin is taken once daily."
Correct Answer: C
Rationale: Rapid-acting insulin (e.g., insulin lispro, aspart) has an onset of 10-30 minutes.
To prevent hypoglycemia, food must be consumed immediately after injection.
2. Which insulin has no peak and is considered a long-acting insulin?
A. Insulin lispro
B. NPH insulin
C. Insulin glargine
D. Regular insulin
Correct Answer: C
Rationale: Insulin glargine (Lantus) is long-acting with no pronounced peak and provides a
steady effect for about 24 hours.
3. What is the typical onset time for NPH insulin?
A. 15 minutes
B. 1 to 2 hours
C. 30 seconds
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D. 5 hours
Correct Answer: B
Rationale: NPH insulin is intermediate-acting, with an onset of 1–2 hours, a peak at 4–12
hours, and a duration of up to 18 hours.
4. A patient receives regular insulin subcutaneously. When should the nurse monitor for
signs of hypoglycemia?
A. 2 to 4 hours after administration
B. Immediately after injection
C. 6 to 8 hours after injection
D. Before the next meal
Correct Answer: A
Rationale: Regular insulin peaks in 2–4 hours, the time when hypoglycemia is most likely to
occur.
5. Which insulin is best administered 30 minutes before a meal to match peak action with
postprandial glucose?
A. Insulin glargine
B. Insulin aspart
C. Regular insulin
D. Insulin detemir
Correct Answer: C
Rationale: Regular insulin should be given 30 minutes before meals due to its onset and
peak time aligning with glucose rise after eating.
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6. What is the duration of action of insulin detemir (Levemir)?
A. 2 to 4 hours
B. 6 to 8 hours
C. 12 to 24 hours
D. 30 to 60 minutes
Correct Answer: C
Rationale: Insulin detemir is a long-acting insulin with a duration that can last between 12
to 24 hours.
7. Which insulin has the fastest onset of action?
A. Regular insulin
B. Insulin lispro
C. NPH insulin
D. Insulin glargine
Correct Answer: B
Rationale: Insulin lispro (Humalog) has a rapid onset of 10–15 minutes, making it the
fastest-acting insulin.
8. A nurse prepares to administer insulin aspart to a patient. When should the patient begin
eating?
A. 60 minutes after injection
B. 30 minutes after injection
C. Immediately after injection
D. Before going to sleep