MARYVILLE UNIVERSITY NUR 405 – NCLEX
PREPARATION EXAM 1|QUESTIONS AND VERIFIED
ANSWERS|GRADED A+|2026 UPDATE
Questions 1–40
1.
A patient with chronic heart failure is prescribed furosemide. Which lab should the nurse
monitor closely?
A. Sodium
B. Potassium
C. Calcium
D. Glucose
Answer: B
Loop diuretics increase potassium excretion, risking hypokalemia.
2.
A patient taking digoxin reports nausea, vomiting, and visual changes. The nurse suspects:
A. Hyperkalemia
B. Digoxin toxicity
C. Hypotension
D. Bradycardia
Answer: B
GI symptoms and vision changes are classic signs of digoxin toxicity.
3.
Which medication is the first-line treatment for type 2 diabetes?
A. Metformin
B. Insulin
C. Glipizide
D. Pioglitazone
,Answer: A
Metformin reduces hepatic glucose production and improves insulin sensitivity.
4.
A patient receiving heparin should be monitored with which lab test?
A. PT
B. INR
C. aPTT
D. CBC
Answer: C
aPTT assesses therapeutic levels of heparin anticoagulation.
5.
Which symptom indicates hypoglycemia in a diabetic patient?
A. Confusion
B. Polyuria
C. Polydipsia
D. Weight gain
Answer: A
CNS symptoms like confusion result from low blood glucose.
6.
A patient on warfarin asks why they need regular blood tests. The nurse explains:
A. Monitor for infection
B. Monitor liver function
C. Ensure therapeutic anticoagulation
D. Monitor electrolytes
Answer: C
INR ensures warfarin is effective without causing bleeding.
7.
, Which antibiotic class is nephrotoxic and ototoxic?
A. Aminoglycosides
B. Penicillins
C. Cephalosporins
D. Macrolides
Answer: A
Accumulation in kidneys and inner ear causes toxicity.
8.
Which patient is at highest risk for lactic acidosis while taking metformin?
A. Patient with renal impairment
B. Patient with hypertension
C. Patient with diabetes type 1
D. Patient on insulin
Answer: A
Metformin accumulates in renal impairment, increasing lactic acidosis risk.
9.
Which medication is used to reverse opioid overdose?
A. Naloxone
B. Flumazenil
C. Atropine
D. Epinephrine
Answer: A
Competitive antagonist at opioid receptors.
10.
A patient with asthma is prescribed albuterol. Which side effect should the nurse expect?
A. Bradycardia
B. Tachycardia
C. Hypotension
D. Fatigue
PREPARATION EXAM 1|QUESTIONS AND VERIFIED
ANSWERS|GRADED A+|2026 UPDATE
Questions 1–40
1.
A patient with chronic heart failure is prescribed furosemide. Which lab should the nurse
monitor closely?
A. Sodium
B. Potassium
C. Calcium
D. Glucose
Answer: B
Loop diuretics increase potassium excretion, risking hypokalemia.
2.
A patient taking digoxin reports nausea, vomiting, and visual changes. The nurse suspects:
A. Hyperkalemia
B. Digoxin toxicity
C. Hypotension
D. Bradycardia
Answer: B
GI symptoms and vision changes are classic signs of digoxin toxicity.
3.
Which medication is the first-line treatment for type 2 diabetes?
A. Metformin
B. Insulin
C. Glipizide
D. Pioglitazone
,Answer: A
Metformin reduces hepatic glucose production and improves insulin sensitivity.
4.
A patient receiving heparin should be monitored with which lab test?
A. PT
B. INR
C. aPTT
D. CBC
Answer: C
aPTT assesses therapeutic levels of heparin anticoagulation.
5.
Which symptom indicates hypoglycemia in a diabetic patient?
A. Confusion
B. Polyuria
C. Polydipsia
D. Weight gain
Answer: A
CNS symptoms like confusion result from low blood glucose.
6.
A patient on warfarin asks why they need regular blood tests. The nurse explains:
A. Monitor for infection
B. Monitor liver function
C. Ensure therapeutic anticoagulation
D. Monitor electrolytes
Answer: C
INR ensures warfarin is effective without causing bleeding.
7.
, Which antibiotic class is nephrotoxic and ototoxic?
A. Aminoglycosides
B. Penicillins
C. Cephalosporins
D. Macrolides
Answer: A
Accumulation in kidneys and inner ear causes toxicity.
8.
Which patient is at highest risk for lactic acidosis while taking metformin?
A. Patient with renal impairment
B. Patient with hypertension
C. Patient with diabetes type 1
D. Patient on insulin
Answer: A
Metformin accumulates in renal impairment, increasing lactic acidosis risk.
9.
Which medication is used to reverse opioid overdose?
A. Naloxone
B. Flumazenil
C. Atropine
D. Epinephrine
Answer: A
Competitive antagonist at opioid receptors.
10.
A patient with asthma is prescribed albuterol. Which side effect should the nurse expect?
A. Bradycardia
B. Tachycardia
C. Hypotension
D. Fatigue
