NCLEX-RN Pharmacology Hematologic
System Exam Questions & Answers |
20 Original NGN Clinical Judgment MCQs
with Detailed Rationales |
ATI Pharmacology Made Easy Style |
Nursing Study Guide |
RN Exam Prep
Question 1
Clinical Scenario
A 68-year-old male is admitted with a deep vein thrombosis (DVT)
and is receiving a continuous intravenous infusion of unfractionated
heparin. The baseline activated partial thromboplastin time (aPTT)
was 30 seconds. The nurse reviews the morning laboratory results
and notes the client’s aPTT is now 115 seconds. The client also has
new, minor oozing from the peripheral IV insertion site.
Question Stem
Which action should the nurse take first?
A. Increase the heparin infusion rate to maintain therapeutic levels.
B. Administer intravenous protamine sulfate immediately.
,C. Stop the heparin infusion.
D. Obtain a stat International Normalized Ratio (INR).
Correct Answer
C. Stop the heparin infusion.
Detailed Rationale
The client’s aPTT is 115 seconds, which is significantly above the
therapeutic range (typically 1.5 to 2 times the control value, or 45–70
seconds). Combined with oozing from the IV site, this indicates
supratherapeutic anticoagulation and an active bleeding risk. The
priority nursing action is to immediately stop the heparin infusion to
prevent further hemorrhage. After stopping the infusion, the nurse
should notify the healthcare provider and anticipate an order for
protamine sulfate, the specific antidote for unfractionated heparin.
Increasing the infusion rate (Option A) would dangerously
exacerbate the bleeding risk. Administering protamine sulfate
(Option B) requires a provider’s order and should not be initiated
before stopping the offending agent. Obtaining a stat INR (Option D)
is unnecessary because INR is used to monitor warfarin therapy, not
unfractionated heparin. This scenario emphasizes the critical
nursing responsibility of monitoring coagulation labs and
recognizing early signs of bleeding to ensure medication safety.
Learning Objective
Interpret aPTT laboratory values in the context of unfractionated
heparin therapy.
Prioritize nursing interventions for supratherapeutic anticoagulation
and active bleeding.
,Identify protamine sulfate as the specific antidote for heparin.
Medication Safety Focus
High-alert medication monitoring and adverse effect recognition.
Question 2
Clinical Scenario
A 72-year-old female with a history of atrial fibrillation is being
discharged with a new prescription for warfarin. During discharge
teaching, the nurse asks the client to repeat back key instructions to
evaluate her understanding of the medication regimen.
Question Stem
Which statement by the client indicates a need for further teaching?
A. "I will take ibuprofen for my occasional knee pain."
B. "I will eat a consistent amount of leafy green vegetables each
week."
C. "I will use a soft-bristled toothbrush to prevent gum bleeding."
D. "I will report any unusual bruising or dark, tarry stools to my
provider."
Correct Answer
A. "I will take ibuprofen for my occasional knee pain."
Detailed Rationale
This statement indicates a need for further teaching because
ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID),
significantly increases the risk of gastrointestinal bleeding. NSAIDs
also potentiate the anticoagulant effect of warfarin by displacing it
, from protein-binding sites and independently inhibiting platelet
function. Clients on warfarin should be taught to use
acetaminophen for mild pain instead. Option B is a correct
statement; maintaining a consistent intake of vitamin K-rich foods
(like leafy greens) prevents dangerous fluctuations in the
International Normalized Ratio (INR). Option C is correct; a soft-
bristled toothbrush minimizes the risk of gingival bleeding. Option D
is correct; reporting unusual bruising or bleeding is a vital safety
measure for clients on anticoagulants. This question highlights the
importance of patient education regarding drug-drug interactions
and safe self-care practices to prevent adverse bleeding events.
Learning Objective
Identify drug-drug interactions that increase bleeding risk with
warfarin.
Recognize appropriate patient self-care measures for individuals on
anticoagulant therapy.
Educate patients on the importance of consistent dietary vitamin K
intake.
Medication Safety Focus
Patient education and drug interaction prevention.
Question 3
Clinical Scenario
A 55-year-old male is recovering from a total hip replacement. The
provider prescribes enoxaparin 40 mg subcutaneously daily for deep
System Exam Questions & Answers |
20 Original NGN Clinical Judgment MCQs
with Detailed Rationales |
ATI Pharmacology Made Easy Style |
Nursing Study Guide |
RN Exam Prep
Question 1
Clinical Scenario
A 68-year-old male is admitted with a deep vein thrombosis (DVT)
and is receiving a continuous intravenous infusion of unfractionated
heparin. The baseline activated partial thromboplastin time (aPTT)
was 30 seconds. The nurse reviews the morning laboratory results
and notes the client’s aPTT is now 115 seconds. The client also has
new, minor oozing from the peripheral IV insertion site.
Question Stem
Which action should the nurse take first?
A. Increase the heparin infusion rate to maintain therapeutic levels.
B. Administer intravenous protamine sulfate immediately.
,C. Stop the heparin infusion.
D. Obtain a stat International Normalized Ratio (INR).
Correct Answer
C. Stop the heparin infusion.
Detailed Rationale
The client’s aPTT is 115 seconds, which is significantly above the
therapeutic range (typically 1.5 to 2 times the control value, or 45–70
seconds). Combined with oozing from the IV site, this indicates
supratherapeutic anticoagulation and an active bleeding risk. The
priority nursing action is to immediately stop the heparin infusion to
prevent further hemorrhage. After stopping the infusion, the nurse
should notify the healthcare provider and anticipate an order for
protamine sulfate, the specific antidote for unfractionated heparin.
Increasing the infusion rate (Option A) would dangerously
exacerbate the bleeding risk. Administering protamine sulfate
(Option B) requires a provider’s order and should not be initiated
before stopping the offending agent. Obtaining a stat INR (Option D)
is unnecessary because INR is used to monitor warfarin therapy, not
unfractionated heparin. This scenario emphasizes the critical
nursing responsibility of monitoring coagulation labs and
recognizing early signs of bleeding to ensure medication safety.
Learning Objective
Interpret aPTT laboratory values in the context of unfractionated
heparin therapy.
Prioritize nursing interventions for supratherapeutic anticoagulation
and active bleeding.
,Identify protamine sulfate as the specific antidote for heparin.
Medication Safety Focus
High-alert medication monitoring and adverse effect recognition.
Question 2
Clinical Scenario
A 72-year-old female with a history of atrial fibrillation is being
discharged with a new prescription for warfarin. During discharge
teaching, the nurse asks the client to repeat back key instructions to
evaluate her understanding of the medication regimen.
Question Stem
Which statement by the client indicates a need for further teaching?
A. "I will take ibuprofen for my occasional knee pain."
B. "I will eat a consistent amount of leafy green vegetables each
week."
C. "I will use a soft-bristled toothbrush to prevent gum bleeding."
D. "I will report any unusual bruising or dark, tarry stools to my
provider."
Correct Answer
A. "I will take ibuprofen for my occasional knee pain."
Detailed Rationale
This statement indicates a need for further teaching because
ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID),
significantly increases the risk of gastrointestinal bleeding. NSAIDs
also potentiate the anticoagulant effect of warfarin by displacing it
, from protein-binding sites and independently inhibiting platelet
function. Clients on warfarin should be taught to use
acetaminophen for mild pain instead. Option B is a correct
statement; maintaining a consistent intake of vitamin K-rich foods
(like leafy greens) prevents dangerous fluctuations in the
International Normalized Ratio (INR). Option C is correct; a soft-
bristled toothbrush minimizes the risk of gingival bleeding. Option D
is correct; reporting unusual bruising or bleeding is a vital safety
measure for clients on anticoagulants. This question highlights the
importance of patient education regarding drug-drug interactions
and safe self-care practices to prevent adverse bleeding events.
Learning Objective
Identify drug-drug interactions that increase bleeding risk with
warfarin.
Recognize appropriate patient self-care measures for individuals on
anticoagulant therapy.
Educate patients on the importance of consistent dietary vitamin K
intake.
Medication Safety Focus
Patient education and drug interaction prevention.
Question 3
Clinical Scenario
A 55-year-old male is recovering from a total hip replacement. The
provider prescribes enoxaparin 40 mg subcutaneously daily for deep
