NU 301 Unit 4 Exam: NCLEX-Style Fundamentals of Nursing -
with Rationales - 250 Questions and Answers Already Graded A+
Premium Exam Tested And Verified
Subject Area Fundamentals of Nursing - Unit 4: Clinical Decision-Making, Pharmacology,
and Complex Care
Description This exam assesses advanced clinical reasoning, pharmacotherapeutic principles,
and evidence-based interventions in complex patient scenarios. It emphasizes
integration of pathophysiology, nursing process, and safety standards at a level
consistent with top-tier US nursing programs.
Expected Grade A+ (93% or higher)
Total Questions 250
Duration 3 hours
Learning Outcomes 1. Apply the nursing process to prioritize care for patients with multi-system
dysfunction.
2. Evaluate pharmacologic and non-pharmacologic interventions considering drug
interactions, adverse effects, and patient-specific factors.
3. Interpret clinical data (e.g., lab values, hemodynamic parameters) to guide
nursing actions.
4. Synthesize ethical, legal, and safety principles in high-acuity care settings.
Accreditation This exam adheres to the rigor and standards of Ivy League and R1 university
nursing programs, including CCNE accreditation expectations and NCLEX-RN
test plan blueprints.
Page 1
,1. A patient with a history of chronic heart failure (HFrEF) on sacubitril/valsartan,
metoprolol succinate, and spironolactone presents with acute dyspnea, oxygen
saturation 88% on room air, blood pressure 82/54 mm Hg, heart rate 112 bpm, and
respiratory rate 28 breaths/min. Crackles auscultated bilaterally to the apices.
Which intervention should the nurse question as part of the initial treatment plan?
A. Administer intravenous furosemide 40 mg bolus.
B. Start noninvasive positive pressure ventilation (NIPPV) at 10 cm H2O.
C. Administer intravenous metoprolol 5 mg over 2 minutes.
D. Obtain a stat 12-lead electrocardiogram and chest radiograph.
Answer: C. Administer intravenous metoprolol 5 mg over 2 minutes.
In acute decompensated heart failure with hypotension and tachycardia, beta-blockers
such as metoprolol are typically withheld because they can exacerbate hypotension and
reduce cardiac output acutely. Furosemide (A) is indicated for volume overload. NIPPV
(B) is appropriate for respiratory distress. Diagnostic studies (D) are essential.
Therefore, C is the intervention the nurse should question.
2. A patient receiving a continuous infusion of norepinephrine for septic shock has a
mean arterial pressure (MAP) of 58 mm Hg despite titration to 30 mcg/min. The
nurse reviews the medication administration record and notes the patient is also
receiving an antibiotic that may potentiate hypotension. Which antibiotic is most
likely contributing to refractory hypotension?
A. Vancomycin
B. Piperacillin-tazobactam
C. Ceftriaxone
D. Azithromycin
Answer: B. Piperacillin-tazobactam
Piperacillin-tazobactam is associated with a higher risk of hypotension and
hypersensitivity reactions, which can exacerbate vasodilatory shock. Vancomycin (A)
can cause red man syndrome but less frequently causes refractory hypotension.
Ceftriaxone (C) and azithromycin (D) are less implicated in severe hypotension. Thus, B
is correct.
Page 2
,3. A nurse is caring for a patient with acute respiratory distress syndrome (ARDS)
on volume-controlled ventilation. The ventilator settings are: tidal volume 6 mL/kg
ideal body weight, PEEP 10 cm H2O, FiO2 0.6. Arterial blood gas shows pH 7.30,
PaCO2 50 mm Hg, PaO2 68 mm Hg. The nurse notes a plateau pressure of 35 cm
H2O. Which action should the nurse take first?
A. Increase PEEP to 14 cm H2O.
B. Increase FiO2 to 0.8.
C. Decrease tidal volume to 4 mL/kg.
D. Notify the respiratory therapist to increase the respiratory rate.
Answer: A. Increase PEEP to 14 cm H2O.
The low PaO2/FiO2 ratio (113) indicates severe hypoxemia. Increasing PEEP improves
oxygenation by recruiting alveoli, and is a priority in ARDS. Increasing FiO2 (B) may
help but does not address the underlying shunt. Decreasing tidal volume (C) would
worsen ventilation and not improve oxygenation. Increasing respiratory rate (D) may
improve PaCO2 but not the primary hypoxemia. Thus, A is the best first action.
4. A patient with cirrhosis and ascites is admitted with hepatic encephalopathy. The
nurse administers lactulose as prescribed. Which assessment finding indicates that
the lactulose is having the desired therapeutic effect?
A. Increased urine output and decreased ascites.
B. Decreased serum ammonia level and improved mental status.
C. Increased serum albumin and decreased prothrombin time.
D. Increased bowel sounds and passage of formed stool.
Answer: B. Decreased serum ammonia level and improved mental status.
Lactulose works by acidifying the colon and trapping ammonia as ammonium, which is
then excreted in feces. Therapeutic effect is measured by decreased serum ammonia
and improvement in mental status. Increased urine output (A) is not a direct effect.
Albumin and PT (C) reflect synthetic function, not lactulose effect. Formed stool (D) is
not the goal; lactulose typically causes loose stools. Thus, B is correct.
Page 3
, 5. A nurse is evaluating a patient's laboratory results: serum sodium 128 mEq/L,
serum potassium 5.6 mEq/L, serum chloride 96 mEq/L, serum bicarbonate 18
mEq/L, BUN 68 mg/dL, creatinine 3.9 mg/dL. The patient has a history of diabetes
and hypertension. Which finding is most concerning and requires immediate
intervention?
A. Hyponatremia
B. Hyperkalemia
C. Hypochloremia
D. Metabolic acidosis
Answer: B. Hyperkalemia
Hyperkalemia (5.6 mEq/L) in the setting of acute kidney injury (BUN/creatinine
elevated) can lead to life-threatening cardiac arrhythmias. Immediate intervention (e.g.,
calcium gluconate, insulin/glucose) is required. Hyponatremia (A) is concerning but less
immediately life-threatening. Hypochloremia (C) is mild. Metabolic acidosis (D) is
present but not the most urgent. Thus, B is correct.
6. A patient with a deep vein thrombosis (DVT) in the left lower extremity is started
on a continuous infusion of unfractionated heparin. The nurse reviews the order:
bolus 80 units/kg followed by infusion at 18 units/kg/hour. The patient weighs 70 kg.
The pharmacy supplies heparin 25,000 units in 500 mL D5W. At what rate (mL/hr)
should the nurse set the infusion pump?
A. 18 mL/hr
B. 25.2 mL/hr
C. 30 mL/hr
D. 35.6 mL/hr
Answer: B. 25.2 mL/hr
First, calculate the infusion dose: 18 units/kg/hr × 70 kg = 1260 units/hr. The
concentration is 25,000 units/500 mL = 50 units/mL. Then, infusion rate = 1260 units/hr
÷ 50 units/mL = 25.2 mL/hr. Thus, B is correct. Option A (18) is the dose per kg, not
rate. Options C and D are miscalculations.
Page 4
with Rationales - 250 Questions and Answers Already Graded A+
Premium Exam Tested And Verified
Subject Area Fundamentals of Nursing - Unit 4: Clinical Decision-Making, Pharmacology,
and Complex Care
Description This exam assesses advanced clinical reasoning, pharmacotherapeutic principles,
and evidence-based interventions in complex patient scenarios. It emphasizes
integration of pathophysiology, nursing process, and safety standards at a level
consistent with top-tier US nursing programs.
Expected Grade A+ (93% or higher)
Total Questions 250
Duration 3 hours
Learning Outcomes 1. Apply the nursing process to prioritize care for patients with multi-system
dysfunction.
2. Evaluate pharmacologic and non-pharmacologic interventions considering drug
interactions, adverse effects, and patient-specific factors.
3. Interpret clinical data (e.g., lab values, hemodynamic parameters) to guide
nursing actions.
4. Synthesize ethical, legal, and safety principles in high-acuity care settings.
Accreditation This exam adheres to the rigor and standards of Ivy League and R1 university
nursing programs, including CCNE accreditation expectations and NCLEX-RN
test plan blueprints.
Page 1
,1. A patient with a history of chronic heart failure (HFrEF) on sacubitril/valsartan,
metoprolol succinate, and spironolactone presents with acute dyspnea, oxygen
saturation 88% on room air, blood pressure 82/54 mm Hg, heart rate 112 bpm, and
respiratory rate 28 breaths/min. Crackles auscultated bilaterally to the apices.
Which intervention should the nurse question as part of the initial treatment plan?
A. Administer intravenous furosemide 40 mg bolus.
B. Start noninvasive positive pressure ventilation (NIPPV) at 10 cm H2O.
C. Administer intravenous metoprolol 5 mg over 2 minutes.
D. Obtain a stat 12-lead electrocardiogram and chest radiograph.
Answer: C. Administer intravenous metoprolol 5 mg over 2 minutes.
In acute decompensated heart failure with hypotension and tachycardia, beta-blockers
such as metoprolol are typically withheld because they can exacerbate hypotension and
reduce cardiac output acutely. Furosemide (A) is indicated for volume overload. NIPPV
(B) is appropriate for respiratory distress. Diagnostic studies (D) are essential.
Therefore, C is the intervention the nurse should question.
2. A patient receiving a continuous infusion of norepinephrine for septic shock has a
mean arterial pressure (MAP) of 58 mm Hg despite titration to 30 mcg/min. The
nurse reviews the medication administration record and notes the patient is also
receiving an antibiotic that may potentiate hypotension. Which antibiotic is most
likely contributing to refractory hypotension?
A. Vancomycin
B. Piperacillin-tazobactam
C. Ceftriaxone
D. Azithromycin
Answer: B. Piperacillin-tazobactam
Piperacillin-tazobactam is associated with a higher risk of hypotension and
hypersensitivity reactions, which can exacerbate vasodilatory shock. Vancomycin (A)
can cause red man syndrome but less frequently causes refractory hypotension.
Ceftriaxone (C) and azithromycin (D) are less implicated in severe hypotension. Thus, B
is correct.
Page 2
,3. A nurse is caring for a patient with acute respiratory distress syndrome (ARDS)
on volume-controlled ventilation. The ventilator settings are: tidal volume 6 mL/kg
ideal body weight, PEEP 10 cm H2O, FiO2 0.6. Arterial blood gas shows pH 7.30,
PaCO2 50 mm Hg, PaO2 68 mm Hg. The nurse notes a plateau pressure of 35 cm
H2O. Which action should the nurse take first?
A. Increase PEEP to 14 cm H2O.
B. Increase FiO2 to 0.8.
C. Decrease tidal volume to 4 mL/kg.
D. Notify the respiratory therapist to increase the respiratory rate.
Answer: A. Increase PEEP to 14 cm H2O.
The low PaO2/FiO2 ratio (113) indicates severe hypoxemia. Increasing PEEP improves
oxygenation by recruiting alveoli, and is a priority in ARDS. Increasing FiO2 (B) may
help but does not address the underlying shunt. Decreasing tidal volume (C) would
worsen ventilation and not improve oxygenation. Increasing respiratory rate (D) may
improve PaCO2 but not the primary hypoxemia. Thus, A is the best first action.
4. A patient with cirrhosis and ascites is admitted with hepatic encephalopathy. The
nurse administers lactulose as prescribed. Which assessment finding indicates that
the lactulose is having the desired therapeutic effect?
A. Increased urine output and decreased ascites.
B. Decreased serum ammonia level and improved mental status.
C. Increased serum albumin and decreased prothrombin time.
D. Increased bowel sounds and passage of formed stool.
Answer: B. Decreased serum ammonia level and improved mental status.
Lactulose works by acidifying the colon and trapping ammonia as ammonium, which is
then excreted in feces. Therapeutic effect is measured by decreased serum ammonia
and improvement in mental status. Increased urine output (A) is not a direct effect.
Albumin and PT (C) reflect synthetic function, not lactulose effect. Formed stool (D) is
not the goal; lactulose typically causes loose stools. Thus, B is correct.
Page 3
, 5. A nurse is evaluating a patient's laboratory results: serum sodium 128 mEq/L,
serum potassium 5.6 mEq/L, serum chloride 96 mEq/L, serum bicarbonate 18
mEq/L, BUN 68 mg/dL, creatinine 3.9 mg/dL. The patient has a history of diabetes
and hypertension. Which finding is most concerning and requires immediate
intervention?
A. Hyponatremia
B. Hyperkalemia
C. Hypochloremia
D. Metabolic acidosis
Answer: B. Hyperkalemia
Hyperkalemia (5.6 mEq/L) in the setting of acute kidney injury (BUN/creatinine
elevated) can lead to life-threatening cardiac arrhythmias. Immediate intervention (e.g.,
calcium gluconate, insulin/glucose) is required. Hyponatremia (A) is concerning but less
immediately life-threatening. Hypochloremia (C) is mild. Metabolic acidosis (D) is
present but not the most urgent. Thus, B is correct.
6. A patient with a deep vein thrombosis (DVT) in the left lower extremity is started
on a continuous infusion of unfractionated heparin. The nurse reviews the order:
bolus 80 units/kg followed by infusion at 18 units/kg/hour. The patient weighs 70 kg.
The pharmacy supplies heparin 25,000 units in 500 mL D5W. At what rate (mL/hr)
should the nurse set the infusion pump?
A. 18 mL/hr
B. 25.2 mL/hr
C. 30 mL/hr
D. 35.6 mL/hr
Answer: B. 25.2 mL/hr
First, calculate the infusion dose: 18 units/kg/hr × 70 kg = 1260 units/hr. The
concentration is 25,000 units/500 mL = 50 units/mL. Then, infusion rate = 1260 units/hr
÷ 50 units/mL = 25.2 mL/hr. Thus, B is correct. Option A (18) is the dose per kg, not
rate. Options C and D are miscalculations.
Page 4
