RN HESI PHaRmacology V3 actual Exam 2026/2027 – comPlEtE
Exam-StylE QuEStIoNS wItH DEtaIlED RatIoNalES | 100% VERIfIED
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1. A client with heart failure is prescribed digoxin (Lanoxin). Which finding indicates digoxin
toxicity?
A. Heart rate of 62 beats per minute
B. Serum potassium level of 4.0 mEq/L
C. Blurred yellow vision (xanthopsia)
D. Blood pressure of 120/80 mm Hg
Answer: C
Rationale: Blurred yellow vision (xanthopsia) is a classic sign of digoxin toxicity. Other signs
include nausea, vomiting, bradycardia, and arrhythmias. A heart rate of 62 is within normal
range (A); potassium 4.0 is normal (B); BP 120/80 is normal (D).
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2. A nurse is administering furosemide (Lasix) to a client with pulmonary edema. Which
laboratory value should the nurse monitor most closely?
A. Serum sodium
B. Serum potassium
C. Serum calcium
D. Serum glucose
Answer: B
, Rationale: Furosemide is a loop diuretic that causes potassium wasting. Hypokalemia is a
common adverse effect and can lead to cardiac arrhythmias. Monitoring serum potassium is
essential.
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3. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which laboratory test should
the nurse monitor to evaluate therapeutic effect?
A. aPTT (activated partial thromboplastin time)
B. PT (prothrombin time) and INR (International Normalized Ratio)
C. platelet count
D. bleeding time
Answer: B
Rationale: Warfarin is monitored by PT and INR, with a therapeutic INR of 2.0-3.0 for most
indications. aPTT (A) monitors heparin; platelet count (C) monitors for thrombocytopenia;
bleeding time (D) is not specific to warfarin.
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4. A client is prescribed enoxaparin (Lovenox) subcutaneously after hip replacement surgery.
Which instruction should the nurse provide?
A. "Aspirate before injecting the medication."
B. "Massage the injection site after administration."
C. "Inject the medication into the abdomen while pinching a skin fold."
D. "Administer the medication intramuscularly in the deltoid."
Answer: C
Rationale: Enoxaparin is given subcutaneously in the abdomen. Pinching a skin fold prevents
injection into muscle. Aspiration (A) is not recommended; massage (B) increases bruising risk;
intramuscular (D) is incorrect route.
Exam-StylE QuEStIoNS wItH DEtaIlED RatIoNalES | 100% VERIfIED
| PaSS guaRaNtEED – a+ gRaDED
1. A client with heart failure is prescribed digoxin (Lanoxin). Which finding indicates digoxin
toxicity?
A. Heart rate of 62 beats per minute
B. Serum potassium level of 4.0 mEq/L
C. Blurred yellow vision (xanthopsia)
D. Blood pressure of 120/80 mm Hg
Answer: C
Rationale: Blurred yellow vision (xanthopsia) is a classic sign of digoxin toxicity. Other signs
include nausea, vomiting, bradycardia, and arrhythmias. A heart rate of 62 is within normal
range (A); potassium 4.0 is normal (B); BP 120/80 is normal (D).
---
2. A nurse is administering furosemide (Lasix) to a client with pulmonary edema. Which
laboratory value should the nurse monitor most closely?
A. Serum sodium
B. Serum potassium
C. Serum calcium
D. Serum glucose
Answer: B
, Rationale: Furosemide is a loop diuretic that causes potassium wasting. Hypokalemia is a
common adverse effect and can lead to cardiac arrhythmias. Monitoring serum potassium is
essential.
---
3. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which laboratory test should
the nurse monitor to evaluate therapeutic effect?
A. aPTT (activated partial thromboplastin time)
B. PT (prothrombin time) and INR (International Normalized Ratio)
C. platelet count
D. bleeding time
Answer: B
Rationale: Warfarin is monitored by PT and INR, with a therapeutic INR of 2.0-3.0 for most
indications. aPTT (A) monitors heparin; platelet count (C) monitors for thrombocytopenia;
bleeding time (D) is not specific to warfarin.
---
4. A client is prescribed enoxaparin (Lovenox) subcutaneously after hip replacement surgery.
Which instruction should the nurse provide?
A. "Aspirate before injecting the medication."
B. "Massage the injection site after administration."
C. "Inject the medication into the abdomen while pinching a skin fold."
D. "Administer the medication intramuscularly in the deltoid."
Answer: C
Rationale: Enoxaparin is given subcutaneously in the abdomen. Pinching a skin fold prevents
injection into muscle. Aspiration (A) is not recommended; massage (B) increases bruising risk;
intramuscular (D) is incorrect route.
