NR 326 EXAM 3 QUESTIONS AND CORRECT
ANSWERS (VERIFIED ASWERS) PLUS
RATIONALES Q &A 2026 |INSTANT
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1. A patient with chronic heart failure is prescribed
furosemide. Which electrolyte imbalance is the nurse most
likely to monitor?
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hypokalemia
Rationale: Furosemide is a loop diuretic that increases
potassium excretion, putting patients at risk for hypokalemia,
which can cause arrhythmias.
2. A patient is admitted with acute myocardial infarction.
Which lab result indicates myocardial damage?
A. Elevated AST
B. Elevated Creatinine
C. Elevated Troponin I
D. Elevated Hemoglobin
Answer: C. Elevated Troponin I
Rationale: Troponin I is a cardiac-specific enzyme that rises
,within hours of myocardial injury and remains elevated for
several days.
3. A nurse is caring for a patient with COPD. Which oxygen
delivery method is most appropriate to prevent CO2
retention?
A. Non-rebreather mask at 15 L/min
B. Nasal cannula at 2 L/min
C. High-flow mask at 12 L/min
D. Venturi mask at 8 L/min
Answer: B. Nasal cannula at 2 L/min
Rationale: Low-flow oxygen (1–2 L/min) helps maintain
oxygenation without causing CO2 retention in patients with
chronic CO2 retention.
4. Which symptom is most indicative of hypoglycemia in a
patient with diabetes mellitus?
A. Polyuria
B. Polydipsia
C. Sweating and tremors
D. Weight loss
Answer: C. Sweating and tremors
Rationale: Hypoglycemia triggers sympathetic nervous system
responses, causing diaphoresis, tremors, and anxiety.
,5. A patient with chronic kidney disease shows elevated BUN
and creatinine. Which dietary modification should the nurse
reinforce?
A. High protein diet
B. Low sodium diet
C. High potassium diet
D. High phosphate diet
Answer: B. Low sodium diet
Rationale: Sodium restriction helps manage fluid retention and
hypertension in CKD patients.
6. The nurse is teaching a patient about warfarin therapy.
Which food should the patient avoid large amounts of?
A. Bananas
B. Spinach
C. Carrots
D. Apples
Answer: B. Spinach
Rationale: Spinach is high in vitamin K, which can reduce the
effectiveness of warfarin and affect INR levels.
7. A patient with COPD is prescribed a short-acting
bronchodilator. Which medication fits this category?
A. Salmeterol
B. Albuterol
C. Tiotropium
, D. Fluticasone
Answer: B. Albuterol
Rationale: Albuterol is a short-acting beta-2 agonist used for
quick relief of bronchospasm.
8. Which finding indicates fluid overload in a patient with
heart failure?
A. Dry mucous membranes
B. Distended neck veins
C. Hypotension
D. Bradycardia
Answer: B. Distended neck veins
Rationale: Jugular vein distention is a hallmark sign of right-
sided heart failure and fluid overload.
9. A patient is on metformin for type 2 diabetes. Which lab
test should the nurse monitor regularly?
A. BUN and Creatinine
B. ALT and AST
C. Hemoglobin
D. Platelet count
Answer: A. BUN and Creatinine
Rationale: Metformin is contraindicated in renal impairment;
kidney function should be monitored to prevent lactic acidosis.
ANSWERS (VERIFIED ASWERS) PLUS
RATIONALES Q &A 2026 |INSTANT
DOWNLOAD PDF
1. A patient with chronic heart failure is prescribed
furosemide. Which electrolyte imbalance is the nurse most
likely to monitor?
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hypokalemia
Rationale: Furosemide is a loop diuretic that increases
potassium excretion, putting patients at risk for hypokalemia,
which can cause arrhythmias.
2. A patient is admitted with acute myocardial infarction.
Which lab result indicates myocardial damage?
A. Elevated AST
B. Elevated Creatinine
C. Elevated Troponin I
D. Elevated Hemoglobin
Answer: C. Elevated Troponin I
Rationale: Troponin I is a cardiac-specific enzyme that rises
,within hours of myocardial injury and remains elevated for
several days.
3. A nurse is caring for a patient with COPD. Which oxygen
delivery method is most appropriate to prevent CO2
retention?
A. Non-rebreather mask at 15 L/min
B. Nasal cannula at 2 L/min
C. High-flow mask at 12 L/min
D. Venturi mask at 8 L/min
Answer: B. Nasal cannula at 2 L/min
Rationale: Low-flow oxygen (1–2 L/min) helps maintain
oxygenation without causing CO2 retention in patients with
chronic CO2 retention.
4. Which symptom is most indicative of hypoglycemia in a
patient with diabetes mellitus?
A. Polyuria
B. Polydipsia
C. Sweating and tremors
D. Weight loss
Answer: C. Sweating and tremors
Rationale: Hypoglycemia triggers sympathetic nervous system
responses, causing diaphoresis, tremors, and anxiety.
,5. A patient with chronic kidney disease shows elevated BUN
and creatinine. Which dietary modification should the nurse
reinforce?
A. High protein diet
B. Low sodium diet
C. High potassium diet
D. High phosphate diet
Answer: B. Low sodium diet
Rationale: Sodium restriction helps manage fluid retention and
hypertension in CKD patients.
6. The nurse is teaching a patient about warfarin therapy.
Which food should the patient avoid large amounts of?
A. Bananas
B. Spinach
C. Carrots
D. Apples
Answer: B. Spinach
Rationale: Spinach is high in vitamin K, which can reduce the
effectiveness of warfarin and affect INR levels.
7. A patient with COPD is prescribed a short-acting
bronchodilator. Which medication fits this category?
A. Salmeterol
B. Albuterol
C. Tiotropium
, D. Fluticasone
Answer: B. Albuterol
Rationale: Albuterol is a short-acting beta-2 agonist used for
quick relief of bronchospasm.
8. Which finding indicates fluid overload in a patient with
heart failure?
A. Dry mucous membranes
B. Distended neck veins
C. Hypotension
D. Bradycardia
Answer: B. Distended neck veins
Rationale: Jugular vein distention is a hallmark sign of right-
sided heart failure and fluid overload.
9. A patient is on metformin for type 2 diabetes. Which lab
test should the nurse monitor regularly?
A. BUN and Creatinine
B. ALT and AST
C. Hemoglobin
D. Platelet count
Answer: A. BUN and Creatinine
Rationale: Metformin is contraindicated in renal impairment;
kidney function should be monitored to prevent lactic acidosis.
