NCLEX-RN & CLINICAL NURSING
ULTIMATE TEST BANK (QUESTIONS 1–
200) GRADED A+ VERIFIABLE
RATIONALES
This premium question study bank delivers high-yield, board-
style multiple-choice questions covering advanced
pharmacology, pathophysiology, and critical nursing
interventions. Every single question features an immediate
correct answer followed by a dense, bold-italic rationale
designed to accelerate concept retention and exam
mastery. Perfect for NCLEX-RN candidates and clinical
practice students, this resource is engineered to maximize
testing performance and guarantee top-tier academic
marks.
1. A patient presents to the emergency department with a suspected
acute myocardial infarction. Which diagnostic lab value is most
specific for myocardial injury?
A) Creatine kinase (CK-MB)
B) Myoglobin
C) Troponin I
D) Lactate dehydrogenase (LDH)
• Answer: C
,• Rationale: Troponin I is highly specific to cardiac muscle and
remains elevated for 1 to 2 weeks following a myocardial
infarction, making it the gold standard diagnostic biomarker. CK-
MB is useful for detecting reinfarction but is less specific than
Troponin.
2. A nurse is preparing to administer digoxin to a patient with heart
failure. Which clinical assessment is a priority before administering
this medication?
A) Monitor apical pulse for 60 seconds
B) Check the patient's blood pressure
C) Assess deep tendon reflexes
D) Measure oxygen saturation
• Answer: A
• Rationale: Digoxin decreases the heart rate (negative
chronotrope). The nurse must assess the apical pulse for one
full minute and withhold the medication if the heart rate is below
60 beats per minute in an adult to prevent severe bradycardia.
3. A patient diagnosed with type 1 diabetes mellitus is found
unresponsive, diaphoretic, and tachycardic. What is the immediate
priority action?
A) Administer 10 units of regular insulin subcutaneously
B) Administer 1 mg of glucagon subcutaneously or intramuscularly
C) Request a hemoglobin A1c laboratory draw
D) Check the patient's urine for ketones
• Answer: B
• Rationale: Severe hypoglycemia in an unresponsive patient
requires immediate emergency glucose elevation. Because the
patient cannot safely swallow oral carbohydrates, glucagon or
intravenous dextrose is the priority intervention to restore
consciousness.
4. Which of the following arterial blood gas (ABG) results indicates
uncompensated metabolic acidosis?
, A) pH 7.32, PaCO2 40 mmHg, HCO3 18 mEq/L
B) pH 7.48, PaCO2 32 mmHg, HCO3 24 mEq/L
C) pH 7.35, PaCO2 48 mmHg, HCO3 28 mEq/L
D) pH 7.28, PaCO2 50 mmHg, HCO3 24 mEq/L
• Answer: A
• Rationale: Metabolic acidosis is characterized by a low pH
(below 7.35) and a low HCO3 (below 22 mEq/L). Because the
PaCO2 remains within the normal range (35–45 mmHg), the
respiratory system has not yet compensated for the metabolic
imbalance.
5. A patient is prescribed warfarin for the treatment of deep vein
thrombosis (DVT). Which laboratory value must the nurse monitor to
evaluate the therapeutic effect of this medication?
A) Activated partial thromboplastin time (aPTT)
B) Platelet count
C) International Normalized Ratio (INR)
D) Bleeding time
• Answer: C
• Rationale: Warfarin is an oral anticoagulant evaluated using
Prothrombin Time (PT) and the International Normalized Ratio
(INR). The target therapeutic INR range for a DVT is typically 2.0
to 3.0. Heparin therapy is monitored using aPTT.
6. An older adult patient is admitted with a diagnosis of dehydration.
Which clinical manifestation should the nurse expect to find?
A) Bradycardia
B) Jugular venous distention
C) Hypertension
D) Decreased skin turgor over the sternum
• Answer: D
• Rationale: Dehydration causes a fluid volume deficit, leading to
poor skin turgor, dry mucous membranes, tachycardia, and
, hypotension. Skin turgor in older adults is best assessed over
the sternum or forehead due to age-related loss of skin
elasticity.
7. A nurse is caring for a patient returning from a cardiac catheterization
via the right femoral artery access site. Which intervention is a
priority?
A) Elevate the head of the bed to 45 degrees
B) Check the right pedal pulses and access site for bleeding
C) Ambulate the patient within 30 minutes of return
D) Apply a warm compress to the puncture site
• Answer: B
• Rationale: Post-cardiac catheterization care requires monitoring
for hemorrhage, hematoma formation, and peripheral arterial
occlusion. The nurse must assess peripheral pulses distal to the
puncture site and enforce strict bed rest with the affected
extremity kept straight.
8. A patient with a history of severe alcoholism is admitted with standard
signs of hepatic encephalopathy. The nurse anticipates a prescription
for which medication to lower serum ammonia levels?
A) Spironolactone
B) Lactulose
C) Rifaximin
D) Furosemide
• Answer: B
• Rationale: Lactulose is an osmotic laxative that promotes the
excretion of ammonia through the stool. It converts ammonia
into ammonium in the colon, preventing its absorption into the
bloodstream and mitigating encephalopathy symptoms.
9. A nurse is assessing a patient 2 hours post-thyroidectomy. The
patient complains of tingling around the mouth and muscle twitching.
The nurse suspects which complication?
A) Hypokalemia
ULTIMATE TEST BANK (QUESTIONS 1–
200) GRADED A+ VERIFIABLE
RATIONALES
This premium question study bank delivers high-yield, board-
style multiple-choice questions covering advanced
pharmacology, pathophysiology, and critical nursing
interventions. Every single question features an immediate
correct answer followed by a dense, bold-italic rationale
designed to accelerate concept retention and exam
mastery. Perfect for NCLEX-RN candidates and clinical
practice students, this resource is engineered to maximize
testing performance and guarantee top-tier academic
marks.
1. A patient presents to the emergency department with a suspected
acute myocardial infarction. Which diagnostic lab value is most
specific for myocardial injury?
A) Creatine kinase (CK-MB)
B) Myoglobin
C) Troponin I
D) Lactate dehydrogenase (LDH)
• Answer: C
,• Rationale: Troponin I is highly specific to cardiac muscle and
remains elevated for 1 to 2 weeks following a myocardial
infarction, making it the gold standard diagnostic biomarker. CK-
MB is useful for detecting reinfarction but is less specific than
Troponin.
2. A nurse is preparing to administer digoxin to a patient with heart
failure. Which clinical assessment is a priority before administering
this medication?
A) Monitor apical pulse for 60 seconds
B) Check the patient's blood pressure
C) Assess deep tendon reflexes
D) Measure oxygen saturation
• Answer: A
• Rationale: Digoxin decreases the heart rate (negative
chronotrope). The nurse must assess the apical pulse for one
full minute and withhold the medication if the heart rate is below
60 beats per minute in an adult to prevent severe bradycardia.
3. A patient diagnosed with type 1 diabetes mellitus is found
unresponsive, diaphoretic, and tachycardic. What is the immediate
priority action?
A) Administer 10 units of regular insulin subcutaneously
B) Administer 1 mg of glucagon subcutaneously or intramuscularly
C) Request a hemoglobin A1c laboratory draw
D) Check the patient's urine for ketones
• Answer: B
• Rationale: Severe hypoglycemia in an unresponsive patient
requires immediate emergency glucose elevation. Because the
patient cannot safely swallow oral carbohydrates, glucagon or
intravenous dextrose is the priority intervention to restore
consciousness.
4. Which of the following arterial blood gas (ABG) results indicates
uncompensated metabolic acidosis?
, A) pH 7.32, PaCO2 40 mmHg, HCO3 18 mEq/L
B) pH 7.48, PaCO2 32 mmHg, HCO3 24 mEq/L
C) pH 7.35, PaCO2 48 mmHg, HCO3 28 mEq/L
D) pH 7.28, PaCO2 50 mmHg, HCO3 24 mEq/L
• Answer: A
• Rationale: Metabolic acidosis is characterized by a low pH
(below 7.35) and a low HCO3 (below 22 mEq/L). Because the
PaCO2 remains within the normal range (35–45 mmHg), the
respiratory system has not yet compensated for the metabolic
imbalance.
5. A patient is prescribed warfarin for the treatment of deep vein
thrombosis (DVT). Which laboratory value must the nurse monitor to
evaluate the therapeutic effect of this medication?
A) Activated partial thromboplastin time (aPTT)
B) Platelet count
C) International Normalized Ratio (INR)
D) Bleeding time
• Answer: C
• Rationale: Warfarin is an oral anticoagulant evaluated using
Prothrombin Time (PT) and the International Normalized Ratio
(INR). The target therapeutic INR range for a DVT is typically 2.0
to 3.0. Heparin therapy is monitored using aPTT.
6. An older adult patient is admitted with a diagnosis of dehydration.
Which clinical manifestation should the nurse expect to find?
A) Bradycardia
B) Jugular venous distention
C) Hypertension
D) Decreased skin turgor over the sternum
• Answer: D
• Rationale: Dehydration causes a fluid volume deficit, leading to
poor skin turgor, dry mucous membranes, tachycardia, and
, hypotension. Skin turgor in older adults is best assessed over
the sternum or forehead due to age-related loss of skin
elasticity.
7. A nurse is caring for a patient returning from a cardiac catheterization
via the right femoral artery access site. Which intervention is a
priority?
A) Elevate the head of the bed to 45 degrees
B) Check the right pedal pulses and access site for bleeding
C) Ambulate the patient within 30 minutes of return
D) Apply a warm compress to the puncture site
• Answer: B
• Rationale: Post-cardiac catheterization care requires monitoring
for hemorrhage, hematoma formation, and peripheral arterial
occlusion. The nurse must assess peripheral pulses distal to the
puncture site and enforce strict bed rest with the affected
extremity kept straight.
8. A patient with a history of severe alcoholism is admitted with standard
signs of hepatic encephalopathy. The nurse anticipates a prescription
for which medication to lower serum ammonia levels?
A) Spironolactone
B) Lactulose
C) Rifaximin
D) Furosemide
• Answer: B
• Rationale: Lactulose is an osmotic laxative that promotes the
excretion of ammonia through the stool. It converts ammonia
into ammonium in the colon, preventing its absorption into the
bloodstream and mitigating encephalopathy symptoms.
9. A nurse is assessing a patient 2 hours post-thyroidectomy. The
patient complains of tingling around the mouth and muscle twitching.
The nurse suspects which complication?
A) Hypokalemia
