ATI PHARMACOLOGY MADE
EASY PRACTICE TEST 2026
QUESTIONS AND ANSWERS
WITH RATIONALES/GRADED
A+/2026 UPDATE/100% CORRECT
/INSTANT DOWNLOAD
Section 1: Cardiovascular & Hematologic Systems
1. A nurse is preparing to administer digoxin to a client with heart failure.
Which of the following findings requires the nurse to withhold the medication
and notify the provider?
• A. Potassium level of 4.2 mEq/L
• B. Apical pulse of 54/min
• C. Blood pressure of 138/84 mm Hg
• D. Respiratory rate of 18/min
Rationale: Digoxin causes a negative chronotropic effect (decreases heart rate). A
key safety guideline is to hold the dose and notify the provider if the adult client's
apical pulse is below 60/min, as bradycardia can be a sign of digoxin toxicity .
2. A patient on warfarin is started on a new antibiotic. What is the most
important nursing action?
• A. Increase the warfarin dose
• B. Monitor INR closely
• C. Stop the warfarin immediately
• D. Administer Vitamin K
Rationale: Many antibiotics (like sulfamethoxazole/trimethoprim or metronidazole)
potentiate the effects of warfarin by inhibiting its metabolism. This increases the risk
of bleeding, so the INR must be monitored frequently to prevent hemorrhage .
,3. A client taking atorvastatin (Lipitor) reports severe muscle pain and dark-
colored urine. The nurse should recognize this as a sign of which complication?
• A. Hepatic toxicity
• B. Steven-Johnson Syndrome
• C. Rhabdomyolysis
• D. Serum Sickness
Rationale: Statins like atorvastatin can cause rhabdomyolysis, a breakdown of
muscle tissue that releases enzymes into the bloodstream, potentially causing kidney
damage. Dark urine and muscle pain are classic symptoms, and the provider should
be notified immediately .
4. A nurse is administering furosemide (Lasix) IV to a client. Which of the
following lab values should the nurse monitor most closely?
• A. Sodium
• B. Creatinine
• C. Potassium
• D. Calcium
Rationale: Furosemide is a loop diuretic that causes excretion of potassium.
Hypokalemia (low potassium) is a serious adverse effect that can increase the risk of
digoxin toxicity and cardiac dysrhythmias .
5. A nurse is providing discharge teaching for a client with a new prescription
for clopidogrel (Plavix). Which of the following statements by the client
indicates a need for further teaching?
• A. "I will need to have regular blood tests to monitor my therapy."
• B. "I should report any black, tarry stools to my doctor."
• C. "I am taking this medication to thin my blood so I don't get strokes."
• D. "I will avoid taking ibuprofen (Advil) for my headaches."
Rationale: Clopidogrel is an antiplatelet agent, not an "anticoagulant" or "blood
thinner" in the traditional sense. It works by preventing platelets from clumping.
Patients should understand the difference, though the clinical goal (preventing
clots/stroke) is correct. The statement uses outdated/incorrect terminology indicating
a need for further clarification.
Section 2: Infection & Immune Systems
, 6. A client with strep throat has a severe allergy to penicillin. Which of the
following medications is most appropriate for the nurse to administer?
• A. Amoxicillin
• B. Azithromycin (Zithromax)
• C. Cephalexin (Keflex)
• D. Doxycycline
Rationale: For clients with a severe penicillin allergy, macrolides like azithromycin or
erythromycin are safe alternatives. Cephalosporins (cephalexin) have cross-sensitivity
with penicillins (approx. 10% risk) and should be avoided in severe reactions .
7. A nurse is administering cefotetan IV to a client. The nurse notes the IV site is
warm, edematous, and painful. What is the priority action?
• A. Slow the infusion rate
• B. Stop the infusion
• C. Apply a warm compress
• D. Elevate the arm
Rationale: These symptoms indicate phlebitis (inflammation of the vein). The nurse
must first stop the infusion to prevent further irritation and then relocate the IV line .
8. A client taking an oral contraceptive is prescribed rifampin for tuberculosis.
What instruction should the nurse provide?
• A. "Stop your birth control until you finish the antibiotics."
• B. "Use a non-hormonal backup method (like condoms) while taking this
drug."
• C. "You will need to double your daily dose of birth control."
• D. "Rifampin is safe to take with oral contraceptives."
Rationale: Rifampin is a potent enzyme inducer. It causes the liver to metabolize oral
contraceptives faster, reducing their efficacy. Patients must use an alternative or
backup method of contraception during rifampin therapy and for several weeks
after .
9. A client receiving vancomycin IV develops a flushed, red rash on the face,
neck, and chest. What is the nurse's priority intervention?
• A. Stop the infusion and notify the provider immediately.
• B. Slow the infusion rate and administer diphenhydramine as prescribed.
• C. Apply cool compresses to the affected areas.
• D. Document the finding as a expected allergic reaction.
EASY PRACTICE TEST 2026
QUESTIONS AND ANSWERS
WITH RATIONALES/GRADED
A+/2026 UPDATE/100% CORRECT
/INSTANT DOWNLOAD
Section 1: Cardiovascular & Hematologic Systems
1. A nurse is preparing to administer digoxin to a client with heart failure.
Which of the following findings requires the nurse to withhold the medication
and notify the provider?
• A. Potassium level of 4.2 mEq/L
• B. Apical pulse of 54/min
• C. Blood pressure of 138/84 mm Hg
• D. Respiratory rate of 18/min
Rationale: Digoxin causes a negative chronotropic effect (decreases heart rate). A
key safety guideline is to hold the dose and notify the provider if the adult client's
apical pulse is below 60/min, as bradycardia can be a sign of digoxin toxicity .
2. A patient on warfarin is started on a new antibiotic. What is the most
important nursing action?
• A. Increase the warfarin dose
• B. Monitor INR closely
• C. Stop the warfarin immediately
• D. Administer Vitamin K
Rationale: Many antibiotics (like sulfamethoxazole/trimethoprim or metronidazole)
potentiate the effects of warfarin by inhibiting its metabolism. This increases the risk
of bleeding, so the INR must be monitored frequently to prevent hemorrhage .
,3. A client taking atorvastatin (Lipitor) reports severe muscle pain and dark-
colored urine. The nurse should recognize this as a sign of which complication?
• A. Hepatic toxicity
• B. Steven-Johnson Syndrome
• C. Rhabdomyolysis
• D. Serum Sickness
Rationale: Statins like atorvastatin can cause rhabdomyolysis, a breakdown of
muscle tissue that releases enzymes into the bloodstream, potentially causing kidney
damage. Dark urine and muscle pain are classic symptoms, and the provider should
be notified immediately .
4. A nurse is administering furosemide (Lasix) IV to a client. Which of the
following lab values should the nurse monitor most closely?
• A. Sodium
• B. Creatinine
• C. Potassium
• D. Calcium
Rationale: Furosemide is a loop diuretic that causes excretion of potassium.
Hypokalemia (low potassium) is a serious adverse effect that can increase the risk of
digoxin toxicity and cardiac dysrhythmias .
5. A nurse is providing discharge teaching for a client with a new prescription
for clopidogrel (Plavix). Which of the following statements by the client
indicates a need for further teaching?
• A. "I will need to have regular blood tests to monitor my therapy."
• B. "I should report any black, tarry stools to my doctor."
• C. "I am taking this medication to thin my blood so I don't get strokes."
• D. "I will avoid taking ibuprofen (Advil) for my headaches."
Rationale: Clopidogrel is an antiplatelet agent, not an "anticoagulant" or "blood
thinner" in the traditional sense. It works by preventing platelets from clumping.
Patients should understand the difference, though the clinical goal (preventing
clots/stroke) is correct. The statement uses outdated/incorrect terminology indicating
a need for further clarification.
Section 2: Infection & Immune Systems
, 6. A client with strep throat has a severe allergy to penicillin. Which of the
following medications is most appropriate for the nurse to administer?
• A. Amoxicillin
• B. Azithromycin (Zithromax)
• C. Cephalexin (Keflex)
• D. Doxycycline
Rationale: For clients with a severe penicillin allergy, macrolides like azithromycin or
erythromycin are safe alternatives. Cephalosporins (cephalexin) have cross-sensitivity
with penicillins (approx. 10% risk) and should be avoided in severe reactions .
7. A nurse is administering cefotetan IV to a client. The nurse notes the IV site is
warm, edematous, and painful. What is the priority action?
• A. Slow the infusion rate
• B. Stop the infusion
• C. Apply a warm compress
• D. Elevate the arm
Rationale: These symptoms indicate phlebitis (inflammation of the vein). The nurse
must first stop the infusion to prevent further irritation and then relocate the IV line .
8. A client taking an oral contraceptive is prescribed rifampin for tuberculosis.
What instruction should the nurse provide?
• A. "Stop your birth control until you finish the antibiotics."
• B. "Use a non-hormonal backup method (like condoms) while taking this
drug."
• C. "You will need to double your daily dose of birth control."
• D. "Rifampin is safe to take with oral contraceptives."
Rationale: Rifampin is a potent enzyme inducer. It causes the liver to metabolize oral
contraceptives faster, reducing their efficacy. Patients must use an alternative or
backup method of contraception during rifampin therapy and for several weeks
after .
9. A client receiving vancomycin IV develops a flushed, red rash on the face,
neck, and chest. What is the nurse's priority intervention?
• A. Stop the infusion and notify the provider immediately.
• B. Slow the infusion rate and administer diphenhydramine as prescribed.
• C. Apply cool compresses to the affected areas.
• D. Document the finding as a expected allergic reaction.
