50 NCLEX Pharmacology Practice Questions with Answers
and Rationales
1. A client taking digoxin reports nausea and seeing yellow halos. What should the nurse do first?
A. Give the next dose
B. Check the apical pulse
C. Encourage ambulation
D. Administer potassium
B. Check the apical pulse
Nausea and yellow halos may indicate digoxin toxicity. The nurse should assess the apical pulse before administering
the medication.
2. Which lab value should the nurse monitor for a client receiving warfarin?
A. Potassium
B. INR
C. Sodium
D. Calcium
B. INR
The INR is used to monitor the therapeutic effectiveness and safety of warfarin therapy.
3. A nurse is monitoring a client taking insulin. Which finding should the nurse recognize as a potential
adverse effect?
A. Hypoglycemia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Hypoglycemia
Hypoglycemia is a known adverse effect associated with insulin and requires nursing assessment and intervention.
4. A nurse is monitoring a client taking furosemide. Which finding should the nurse recognize as a potential
adverse effect?
A. Hypokalemia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Hypokalemia
Hypokalemia is a known adverse effect associated with furosemide and requires nursing assessment and
intervention.
, 5. A nurse is monitoring a client taking heparin. Which finding should the nurse recognize as a potential
adverse effect?
A. Bleeding
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Bleeding
Bleeding is a known adverse effect associated with heparin and requires nursing assessment and intervention.
6. A nurse is monitoring a client taking lisinopril. Which finding should the nurse recognize as a potential
adverse effect?
A. Cough
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Cough
Cough is a known adverse effect associated with lisinopril and requires nursing assessment and intervention.
7. A nurse is monitoring a client taking morphine. Which finding should the nurse recognize as a potential
adverse effect?
A. Respiratory Depression
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Respiratory Depression
Respiratory Depression is a known adverse effect associated with morphine and requires nursing assessment and
intervention.
8. A nurse is monitoring a client taking phenytoin. Which finding should the nurse recognize as a potential
adverse effect?
A. Gingival Hyperplasia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Gingival Hyperplasia
Gingival Hyperplasia is a known adverse effect associated with phenytoin and requires nursing assessment and
intervention.
9. A nurse is monitoring a client taking metformin. Which finding should the nurse recognize as a potential
adverse effect?
A. Lactic Acidosis
B. Improved appetite
C. Increased energy
and Rationales
1. A client taking digoxin reports nausea and seeing yellow halos. What should the nurse do first?
A. Give the next dose
B. Check the apical pulse
C. Encourage ambulation
D. Administer potassium
B. Check the apical pulse
Nausea and yellow halos may indicate digoxin toxicity. The nurse should assess the apical pulse before administering
the medication.
2. Which lab value should the nurse monitor for a client receiving warfarin?
A. Potassium
B. INR
C. Sodium
D. Calcium
B. INR
The INR is used to monitor the therapeutic effectiveness and safety of warfarin therapy.
3. A nurse is monitoring a client taking insulin. Which finding should the nurse recognize as a potential
adverse effect?
A. Hypoglycemia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Hypoglycemia
Hypoglycemia is a known adverse effect associated with insulin and requires nursing assessment and intervention.
4. A nurse is monitoring a client taking furosemide. Which finding should the nurse recognize as a potential
adverse effect?
A. Hypokalemia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Hypokalemia
Hypokalemia is a known adverse effect associated with furosemide and requires nursing assessment and
intervention.
, 5. A nurse is monitoring a client taking heparin. Which finding should the nurse recognize as a potential
adverse effect?
A. Bleeding
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Bleeding
Bleeding is a known adverse effect associated with heparin and requires nursing assessment and intervention.
6. A nurse is monitoring a client taking lisinopril. Which finding should the nurse recognize as a potential
adverse effect?
A. Cough
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Cough
Cough is a known adverse effect associated with lisinopril and requires nursing assessment and intervention.
7. A nurse is monitoring a client taking morphine. Which finding should the nurse recognize as a potential
adverse effect?
A. Respiratory Depression
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Respiratory Depression
Respiratory Depression is a known adverse effect associated with morphine and requires nursing assessment and
intervention.
8. A nurse is monitoring a client taking phenytoin. Which finding should the nurse recognize as a potential
adverse effect?
A. Gingival Hyperplasia
B. Improved appetite
C. Increased energy
D. Bradycardia
A. Gingival Hyperplasia
Gingival Hyperplasia is a known adverse effect associated with phenytoin and requires nursing assessment and
intervention.
9. A nurse is monitoring a client taking metformin. Which finding should the nurse recognize as a potential
adverse effect?
A. Lactic Acidosis
B. Improved appetite
C. Increased energy
