NCLEX-PN 2026 LATEST COMPREHENSIVE STUDY
GUIDE Practice Questions with Detailed Rationales,
Complete Exam Review, Verified Answers, Success
Preparation Guide
Question 1:
A newly licensed practical nurse (LPN) is caring for a client who has a prescription
for a continuous IV infusion of heparin. Which action should the LPN take when
preparing to administer this medication?
A) Verify the prescription with the healthcare provider before administration
B) Administer the medication through the same IV line as other infusions
C) Check the activated partial thromboplastin time (aPTT) level before
administration
D) Administer the medication via intramuscular injection if the IV site is infiltrated
Correct Answer: C) Check the activated partial thromboplastin time (aPTT)
level before administration
Rationale:
Heparin is an anticoagulant that requires close monitoring of coagulation
parameters. The aPTT level must be checked before administration to ensure the
therapeutic range is maintained and to prevent bleeding complications. Option A is
incorrect because the prescription has already been verified by the healthcare
provider. Option B is incorrect because heparin should be administered through a
dedicated IV line when possible to prevent incompatibilities. Option D is incorrect
because heparin should never be administered intramuscularly due to the risk of
hematoma formation.
Key Point: LPNs must verify laboratory values before administering medications
that affect coagulation parameters and report abnormal values to the RN or
healthcare provider.
Question 2:
The LPN is assisting with the care of a client who has a nasogastric (NG) tube
,connected to low intermittent suction. Which finding requires immediate
intervention by the LPN?
A) The client's gastric residual volume is 150 mL
B) The client's bowel sounds are hyperactive in all four quadrants
C) The client has bright red blood draining from the NG tube
D) The client reports mild nausea
Correct Answer: C) The client has bright red blood draining from the NG
tube
Rationale:
Bright red blood drainage from an NG tube indicates active gastrointestinal
bleeding and requires immediate notification of the healthcare provider. This is a
medical emergency that could indicate a stress ulcer, perforation, or other serious
complication. Option A shows a gastric residual volume of 150 mL, which is
within acceptable limits (typically less than 200-250 mL). Option B, hyperactive
bowel sounds, may indicate the return of bowel function. Option D, mild nausea, is
a common discomfort that should be monitored but does not require immediate
intervention.
Key Point: Signs of active bleeding, such as bright red blood from any drainage
tube or site, require immediate assessment and provider notification.
Question 3:
The LPN is preparing to administer a prescribed medication to a client. The client
states, "I don't want to take that medication because it makes me feel dizzy."
Which action should the LPN take?
A) Administer the medication and document the client's statement
B) Ask the client to explain more about the dizziness experienced
C) Withhold the medication and notify the healthcare provider
D) Crush the medication and mix it with applesauce to mask the taste
Correct Answer: C) Withhold the medication and notify the healthcare
provider
Rationale:
When a client refuses medication, the LPN must respect the client's right to refuse
treatment. The medication should be withheld, and the healthcare provider should
,be notified to discuss alternative options or assess the client's concerns. Option A is
incorrect because administering medication against a client's wishes is unethical
and violates the client's rights. Option B, while gathering information is
appropriate, the priority is to withhold the medication and notify the provider
before attempting to administer again. Option D is incorrect because crushing
medications may alter their absorption and should only be done if prescribed in a
crushable form.
Key Point: Clients have the right to refuse treatment; LPNs must respect this right,
withhold the medication, and notify the healthcare provider for further instructions.
Question 4:
A client is admitted with a diagnosis of rule-out myocardial infarction (MI). Which
laboratory test is most specific for diagnosing myocardial injury?
A) Creatine kinase (CK)
B) Troponin I
C) Aspartate aminotransferase (AST)
D) Lactate dehydrogenase (LDH)
Correct Answer: B) Troponin I
Rationale:
Troponin I and Troponin T are cardiac-specific proteins that are released into the
bloodstream when myocardial damage occurs. These are the most specific and
sensitive markers for myocardial injury. Option A, CK (specifically CK-MB), is
also used but is less specific than troponins. Option C, AST, is not specific to
cardiac tissue. Option D, LDH, is not specific for myocardial injury and can be
elevated in many other conditions.
Key Point: Troponin levels are the gold standard for diagnosing myocardial
infarction due to their high specificity and sensitivity for cardiac muscle damage.
Question 5:
The LPN is caring for a client who is 2 days post-operative following abdominal
surgery. The client's vital signs are: temperature 101.2°F (38.4°C), heart rate 112
bpm, respiratory rate 24/min, blood pressure 98/62 mmHg. Which complication
should the LPN suspect?
, A) Hemorrhage
B) Wound infection
C) Pulmonary embolism
D) Sepsis
Correct Answer: D) Sepsis
Rationale:
The client's presentation of fever, tachycardia, tachypnea, and hypotension
suggests sepsis, which is a life-threatening organ dysfunction caused by a
dysregulated host response to infection. Post-operative clients are at risk for sepsis
from wound infections or other sources. Option A, hemorrhage, would present
with hypotension and tachycardia but not typically with fever. Option B, wound
infection, may cause fever but the systemic signs of tachycardia and hypotension
suggest a more severe systemic response. Option C, pulmonary embolism,
typically presents with sudden onset of chest pain, dyspnea, and tachycardia, but
hypotension and fever are less common.
Key Point: Sepsis is a medical emergency requiring immediate notification of the
healthcare provider and initiation of sepsis protocols, including blood cultures and
antibiotic administration.
Question 6:
The LPN is reinforcing teaching for a client prescribed digoxin. Which statement
by the client indicates a need for further teaching?
A) "I should check my pulse before taking this medication"
B) "I can take this medication with food if it upsets my stomach"
C) "I will stop taking this medication if I feel dizzy"
D) "I should report blurred vision to my healthcare provider"
Correct Answer: C) "I will stop taking this medication if I feel dizzy"
Rationale:
Clients taking digoxin should never abruptly stop their medication without
consulting their healthcare provider. Dizziness may indicate digoxin toxicity, and
the client should notify their healthcare provider immediately, but they should not
stop the medication on their own. Option A is correct, as clients should check their
apical pulse for 1 full minute before taking digoxin and hold the dose if the pulse is
GUIDE Practice Questions with Detailed Rationales,
Complete Exam Review, Verified Answers, Success
Preparation Guide
Question 1:
A newly licensed practical nurse (LPN) is caring for a client who has a prescription
for a continuous IV infusion of heparin. Which action should the LPN take when
preparing to administer this medication?
A) Verify the prescription with the healthcare provider before administration
B) Administer the medication through the same IV line as other infusions
C) Check the activated partial thromboplastin time (aPTT) level before
administration
D) Administer the medication via intramuscular injection if the IV site is infiltrated
Correct Answer: C) Check the activated partial thromboplastin time (aPTT)
level before administration
Rationale:
Heparin is an anticoagulant that requires close monitoring of coagulation
parameters. The aPTT level must be checked before administration to ensure the
therapeutic range is maintained and to prevent bleeding complications. Option A is
incorrect because the prescription has already been verified by the healthcare
provider. Option B is incorrect because heparin should be administered through a
dedicated IV line when possible to prevent incompatibilities. Option D is incorrect
because heparin should never be administered intramuscularly due to the risk of
hematoma formation.
Key Point: LPNs must verify laboratory values before administering medications
that affect coagulation parameters and report abnormal values to the RN or
healthcare provider.
Question 2:
The LPN is assisting with the care of a client who has a nasogastric (NG) tube
,connected to low intermittent suction. Which finding requires immediate
intervention by the LPN?
A) The client's gastric residual volume is 150 mL
B) The client's bowel sounds are hyperactive in all four quadrants
C) The client has bright red blood draining from the NG tube
D) The client reports mild nausea
Correct Answer: C) The client has bright red blood draining from the NG
tube
Rationale:
Bright red blood drainage from an NG tube indicates active gastrointestinal
bleeding and requires immediate notification of the healthcare provider. This is a
medical emergency that could indicate a stress ulcer, perforation, or other serious
complication. Option A shows a gastric residual volume of 150 mL, which is
within acceptable limits (typically less than 200-250 mL). Option B, hyperactive
bowel sounds, may indicate the return of bowel function. Option D, mild nausea, is
a common discomfort that should be monitored but does not require immediate
intervention.
Key Point: Signs of active bleeding, such as bright red blood from any drainage
tube or site, require immediate assessment and provider notification.
Question 3:
The LPN is preparing to administer a prescribed medication to a client. The client
states, "I don't want to take that medication because it makes me feel dizzy."
Which action should the LPN take?
A) Administer the medication and document the client's statement
B) Ask the client to explain more about the dizziness experienced
C) Withhold the medication and notify the healthcare provider
D) Crush the medication and mix it with applesauce to mask the taste
Correct Answer: C) Withhold the medication and notify the healthcare
provider
Rationale:
When a client refuses medication, the LPN must respect the client's right to refuse
treatment. The medication should be withheld, and the healthcare provider should
,be notified to discuss alternative options or assess the client's concerns. Option A is
incorrect because administering medication against a client's wishes is unethical
and violates the client's rights. Option B, while gathering information is
appropriate, the priority is to withhold the medication and notify the provider
before attempting to administer again. Option D is incorrect because crushing
medications may alter their absorption and should only be done if prescribed in a
crushable form.
Key Point: Clients have the right to refuse treatment; LPNs must respect this right,
withhold the medication, and notify the healthcare provider for further instructions.
Question 4:
A client is admitted with a diagnosis of rule-out myocardial infarction (MI). Which
laboratory test is most specific for diagnosing myocardial injury?
A) Creatine kinase (CK)
B) Troponin I
C) Aspartate aminotransferase (AST)
D) Lactate dehydrogenase (LDH)
Correct Answer: B) Troponin I
Rationale:
Troponin I and Troponin T are cardiac-specific proteins that are released into the
bloodstream when myocardial damage occurs. These are the most specific and
sensitive markers for myocardial injury. Option A, CK (specifically CK-MB), is
also used but is less specific than troponins. Option C, AST, is not specific to
cardiac tissue. Option D, LDH, is not specific for myocardial injury and can be
elevated in many other conditions.
Key Point: Troponin levels are the gold standard for diagnosing myocardial
infarction due to their high specificity and sensitivity for cardiac muscle damage.
Question 5:
The LPN is caring for a client who is 2 days post-operative following abdominal
surgery. The client's vital signs are: temperature 101.2°F (38.4°C), heart rate 112
bpm, respiratory rate 24/min, blood pressure 98/62 mmHg. Which complication
should the LPN suspect?
, A) Hemorrhage
B) Wound infection
C) Pulmonary embolism
D) Sepsis
Correct Answer: D) Sepsis
Rationale:
The client's presentation of fever, tachycardia, tachypnea, and hypotension
suggests sepsis, which is a life-threatening organ dysfunction caused by a
dysregulated host response to infection. Post-operative clients are at risk for sepsis
from wound infections or other sources. Option A, hemorrhage, would present
with hypotension and tachycardia but not typically with fever. Option B, wound
infection, may cause fever but the systemic signs of tachycardia and hypotension
suggest a more severe systemic response. Option C, pulmonary embolism,
typically presents with sudden onset of chest pain, dyspnea, and tachycardia, but
hypotension and fever are less common.
Key Point: Sepsis is a medical emergency requiring immediate notification of the
healthcare provider and initiation of sepsis protocols, including blood cultures and
antibiotic administration.
Question 6:
The LPN is reinforcing teaching for a client prescribed digoxin. Which statement
by the client indicates a need for further teaching?
A) "I should check my pulse before taking this medication"
B) "I can take this medication with food if it upsets my stomach"
C) "I will stop taking this medication if I feel dizzy"
D) "I should report blurred vision to my healthcare provider"
Correct Answer: C) "I will stop taking this medication if I feel dizzy"
Rationale:
Clients taking digoxin should never abruptly stop their medication without
consulting their healthcare provider. Dizziness may indicate digoxin toxicity, and
the client should notify their healthcare provider immediately, but they should not
stop the medication on their own. Option A is correct, as clients should check their
apical pulse for 1 full minute before taking digoxin and hold the dose if the pulse is
