NU 578
NU 578 Unit 4 Exam| Questions and Answers
|with Detailed Rationales| 2026 Graded A+
1.
Insulin is used to treat:
A. Hypertension
B. Diabetes mellitus
C. Asthma
D. Infection
Rationale:
Insulin replaces or supplements endogenous insulin to regulate blood glucose levels,
especially in type 1 and advanced type 2 diabetes.
2.
Which type of insulin has the fastest onset?
A. Long-acting
B. Rapid-acting
C. Intermediate
D. Mixed
Rationale:
Rapid-acting insulin (e.g., lispro) begins working within minutes, making it ideal for
mealtime glucose control.
3.
Long-acting insulin is used to:
A. Treat hypoglycemia
B. Maintain basal glucose levels
C. Provide rapid control
D. Replace meals
NU 578
, NU 578
Rationale:
Long-acting insulin provides steady background insulin over 24 hours.
4.
A major side effect of insulin therapy is:
A. Hypertension
B. Hypoglycemia
C. Hyperkalemia
D. Fever
Rationale:
Excess insulin lowers blood glucose too much, causing hypoglycemia.
5.
Metformin works by:
A. Increasing insulin secretion
B. Decreasing hepatic glucose production
C. Increasing appetite
D. Blocking insulin
Rationale:
Metformin reduces glucose production in the liver and improves insulin sensitivity.
6.
Metformin is contraindicated in:
A. Hypertension
B. Renal failure
C. Diabetes
D. Obesity
Rationale:
Renal impairment increases risk of lactic acidosis with metformin.
NU 578
NU 578 Unit 4 Exam| Questions and Answers
|with Detailed Rationales| 2026 Graded A+
1.
Insulin is used to treat:
A. Hypertension
B. Diabetes mellitus
C. Asthma
D. Infection
Rationale:
Insulin replaces or supplements endogenous insulin to regulate blood glucose levels,
especially in type 1 and advanced type 2 diabetes.
2.
Which type of insulin has the fastest onset?
A. Long-acting
B. Rapid-acting
C. Intermediate
D. Mixed
Rationale:
Rapid-acting insulin (e.g., lispro) begins working within minutes, making it ideal for
mealtime glucose control.
3.
Long-acting insulin is used to:
A. Treat hypoglycemia
B. Maintain basal glucose levels
C. Provide rapid control
D. Replace meals
NU 578
, NU 578
Rationale:
Long-acting insulin provides steady background insulin over 24 hours.
4.
A major side effect of insulin therapy is:
A. Hypertension
B. Hypoglycemia
C. Hyperkalemia
D. Fever
Rationale:
Excess insulin lowers blood glucose too much, causing hypoglycemia.
5.
Metformin works by:
A. Increasing insulin secretion
B. Decreasing hepatic glucose production
C. Increasing appetite
D. Blocking insulin
Rationale:
Metformin reduces glucose production in the liver and improves insulin sensitivity.
6.
Metformin is contraindicated in:
A. Hypertension
B. Renal failure
C. Diabetes
D. Obesity
Rationale:
Renal impairment increases risk of lactic acidosis with metformin.
NU 578
