NCLEX-RN Pharmacology Hematologic
System Practice Questions |
20 ATI & NGN Style MCQs with Detailed
Rationales
Question 1
Clinical Scenario
A 65-year-old male with a new diagnosis of atrial fibrillation is being
discharged with a new prescription for warfarin. His medical history
includes hypertension and osteoarthritis. The nurse is providing
discharge education regarding medication safety and lifestyle
modifications.
Question Stem
Which statement by the client indicates an understanding of the
teaching?
A. "I will increase my daily intake of leafy green vegetables to stay
healthy."
B. "I will use a soft-bristled toothbrush and an electric razor for
shaving."
C. "I will take ibuprofen for my occasional osteoarthritis knee pain."
D. "I will stop taking the warfarin immediately if I notice my gums
bleeding slightly."
,Correct Answer
Correct Answer: B. "I will use a soft-bristled toothbrush and an
electric razor for shaving."
Detailed Rationale
The correct answer is B. Warfarin is a high-alert anticoagulant that
significantly increases the risk of bleeding. Using a soft-bristled
toothbrush and an electric razor are essential bleeding precautions
that minimize mucosal and skin trauma, thereby reducing the risk of
hemorrhage. Option A is incorrect because patients on warfarin
should maintain a consistent intake of vitamin K-rich foods (like
leafy greens), not increase or decrease them abruptly, as vitamin K
directly antagonizes warfarin's effect. Option C is incorrect because
NSAIDs like ibuprofen inhibit platelet function and can cause gastric
mucosal damage, compounding the bleeding risk; acetaminophen
is the preferred analgesic. Option D is incorrect because the client
should never abruptly stop warfarin without provider instruction, as
this increases the risk of thromboembolic events (e.g., stroke).
Minor bleeding should be reported, but the medication regimen
requires professional adjustment, not unilateral cessation.
Learning Objective
Identify appropriate bleeding precautions for patients on
anticoagulant therapy.
Recognize drug-food and drug-drug interactions associated with
warfarin.
Educate patients on the importance of consistent vitamin K intake
and safe analgesic alternatives.
,Medication Safety Focus
Patient education / High-alert medication
Question 2
Clinical Scenario
A 55-year-old female is admitted with a deep vein thrombosis (DVT)
and is receiving a continuous intravenous heparin infusion. The
laboratory reports that her current activated partial thromboplastin
time (aPTT) is 95 seconds. The normal control aPTT is 30 seconds,
and the facility's therapeutic range for heparin is 60 to 90 seconds.
The client has no active signs of bleeding.
Question Stem
Which action should the nurse take first?
A. Increase the heparin infusion rate by 2 mL/hr.
B. Administer the scheduled evening dose of warfarin.
C. Decrease the heparin infusion rate per the facility's protocol.
D. Prepare to administer intravenous protamine sulfate.
Correct Answer
Correct Answer: C. Decrease the heparin infusion rate per the
facility's protocol.
Detailed Rationale
The correct answer is C. The client's aPTT of 95 seconds is
supratherapeutic (above the target range of 60–90 seconds).
According to standard heparin nomograms, a supratherapeutic aPTT
without active bleeding requires the nurse to decrease the infusion
rate or hold the infusion temporarily, depending on the specific
, protocol, and recheck the aPTT in a specified timeframe (e.g., 6
hours). Option A is incorrect because increasing the rate would
further elevate the aPTT and increase bleeding risk. Option B is
incorrect because while warfarin is often initiated concurrently with
heparin, administering it does not address the immediate safety
concern of the supratherapeutic aPTT. Option D is incorrect
because protamine sulfate is the reversal agent for heparin, but it is
reserved for severe, life-threatening bleeding or massive overdose,
not for an asymptomatic, mildly elevated aPTT.
Learning Objective
Interpret aPTT laboratory values in relation to heparin therapy.
Apply facility-specific heparin nomogram protocols for
supratherapeutic levels.
Differentiate between routine dose adjustments and the need for
anticoagulant reversal agents.
Medication Safety Focus
Monitoring / High-alert medication
Question 3
Clinical Scenario
A 72-year-old male with a history of atrial fibrillation presents to the
emergency department with severe gastrointestinal bleeding and
hypotension. His home medication list includes apixaban 5 mg
twice daily. The healthcare provider orders a specific reversal agent
to counteract the anticoagulant effect.
System Practice Questions |
20 ATI & NGN Style MCQs with Detailed
Rationales
Question 1
Clinical Scenario
A 65-year-old male with a new diagnosis of atrial fibrillation is being
discharged with a new prescription for warfarin. His medical history
includes hypertension and osteoarthritis. The nurse is providing
discharge education regarding medication safety and lifestyle
modifications.
Question Stem
Which statement by the client indicates an understanding of the
teaching?
A. "I will increase my daily intake of leafy green vegetables to stay
healthy."
B. "I will use a soft-bristled toothbrush and an electric razor for
shaving."
C. "I will take ibuprofen for my occasional osteoarthritis knee pain."
D. "I will stop taking the warfarin immediately if I notice my gums
bleeding slightly."
,Correct Answer
Correct Answer: B. "I will use a soft-bristled toothbrush and an
electric razor for shaving."
Detailed Rationale
The correct answer is B. Warfarin is a high-alert anticoagulant that
significantly increases the risk of bleeding. Using a soft-bristled
toothbrush and an electric razor are essential bleeding precautions
that minimize mucosal and skin trauma, thereby reducing the risk of
hemorrhage. Option A is incorrect because patients on warfarin
should maintain a consistent intake of vitamin K-rich foods (like
leafy greens), not increase or decrease them abruptly, as vitamin K
directly antagonizes warfarin's effect. Option C is incorrect because
NSAIDs like ibuprofen inhibit platelet function and can cause gastric
mucosal damage, compounding the bleeding risk; acetaminophen
is the preferred analgesic. Option D is incorrect because the client
should never abruptly stop warfarin without provider instruction, as
this increases the risk of thromboembolic events (e.g., stroke).
Minor bleeding should be reported, but the medication regimen
requires professional adjustment, not unilateral cessation.
Learning Objective
Identify appropriate bleeding precautions for patients on
anticoagulant therapy.
Recognize drug-food and drug-drug interactions associated with
warfarin.
Educate patients on the importance of consistent vitamin K intake
and safe analgesic alternatives.
,Medication Safety Focus
Patient education / High-alert medication
Question 2
Clinical Scenario
A 55-year-old female is admitted with a deep vein thrombosis (DVT)
and is receiving a continuous intravenous heparin infusion. The
laboratory reports that her current activated partial thromboplastin
time (aPTT) is 95 seconds. The normal control aPTT is 30 seconds,
and the facility's therapeutic range for heparin is 60 to 90 seconds.
The client has no active signs of bleeding.
Question Stem
Which action should the nurse take first?
A. Increase the heparin infusion rate by 2 mL/hr.
B. Administer the scheduled evening dose of warfarin.
C. Decrease the heparin infusion rate per the facility's protocol.
D. Prepare to administer intravenous protamine sulfate.
Correct Answer
Correct Answer: C. Decrease the heparin infusion rate per the
facility's protocol.
Detailed Rationale
The correct answer is C. The client's aPTT of 95 seconds is
supratherapeutic (above the target range of 60–90 seconds).
According to standard heparin nomograms, a supratherapeutic aPTT
without active bleeding requires the nurse to decrease the infusion
rate or hold the infusion temporarily, depending on the specific
, protocol, and recheck the aPTT in a specified timeframe (e.g., 6
hours). Option A is incorrect because increasing the rate would
further elevate the aPTT and increase bleeding risk. Option B is
incorrect because while warfarin is often initiated concurrently with
heparin, administering it does not address the immediate safety
concern of the supratherapeutic aPTT. Option D is incorrect
because protamine sulfate is the reversal agent for heparin, but it is
reserved for severe, life-threatening bleeding or massive overdose,
not for an asymptomatic, mildly elevated aPTT.
Learning Objective
Interpret aPTT laboratory values in relation to heparin therapy.
Apply facility-specific heparin nomogram protocols for
supratherapeutic levels.
Differentiate between routine dose adjustments and the need for
anticoagulant reversal agents.
Medication Safety Focus
Monitoring / High-alert medication
Question 3
Clinical Scenario
A 72-year-old male with a history of atrial fibrillation presents to the
emergency department with severe gastrointestinal bleeding and
hypotension. His home medication list includes apixaban 5 mg
twice daily. The healthcare provider orders a specific reversal agent
to counteract the anticoagulant effect.
