NU 301 Unit 1 Exam Prep Document | 2026/2027 Edition | 250
Verified Questions
NU 301 Unit 1 Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY GRADED A+.
100% Verified Solutions | Updated Per Latest NCLEX-RN® Test Plan | Graded A+
This comprehensive exam preparation resource contains 250 NCLEX-style fundamentals of nursing
questions with detailed rationales. Designed to align with the latest NCLEX-RN® test plan, it covers
essential nursing concepts including safety, infection control, basic care and comfort, and
pharmacological principles. Each question is accompanied by a rationale explaining the correct answer
and distractor analysis to reinforce critical thinking. Ideal for students seeking to master foundational
nursing knowledge and excel in the NU 301 Unit 1 exam.
Key Features:
250 NCLEX-style questions with rationales
Coverage of safety, infection control, and basic care
Pharmacological and parenteral therapy principles
Health promotion and maintenance concepts
Psychosocial integrity and therapeutic communication
Evidence-based practice and clinical decision-making
Updates for 2026:
- Updated to reflect 2026-2027 NCLEX-RN® test plan changes
- Revised rationales with current evidence-based guidelines
- Added new questions on emerging infection control protocols
- Enhanced distractor explanations for improved critical thinking
- Incorporated client-centered care and cultural competency scenarios
Abstract:
This document serves as a definitive study guide for the NU 301 Unit 1 exam, focusing on fundamentals of nursing
as tested by the NCLEX-RN®. It comprises 250 carefully curated questions that span key domains: safe and
effective care environment, health promotion, psychosocial integrity, and physiological integrity. Each question
includes a rationale that not only explains the correct answer but also analyzes common distractors, thereby
deepening the learner's understanding of nursing principles. The content is aligned with the 2026-2027 academic
year and the latest NCLEX-RN® test plan, ensuring relevance and accuracy. By engaging with these questions,
students will develop the clinical judgment necessary to prioritize care, anticipate complications, and implement
evidence-based interventions. This resource is designed to build confidence and competence, ultimately preparing
students for both the unit exam and the NCLEX-RN® licensure examination.
Keywords:
fundamentals of nursing, NCLEX-RN preparation, 250 questions with rationales, safety and infection control,
pharmacology basics, therapeutic communication, clinical judgment, NU 301 exam
Answer Format:
Each question is followed by the correct answer, a detailed rationale explaining the underlying nursing concept,
and an analysis of why each distractor is incorrect. Rationales incorporate evidence-based practice and highlight
key points to remember for the exam. This format promotes active learning and helps students identify common
reasoning errors.
Compliance Checklist:
Aligned with 2026-2027 NCLEX-RN® test plan
Page 1
, Questions reviewed by subject matter experts
Rationales cite current nursing textbooks and guidelines
Distractor analysis addresses common student misconceptions
Content covers all fundamental nursing domains
Suitable for self-assessment and group study
Content Area Overview:
Content Area Questions Key Topics Weight
Safe and Effective Care 1-50 Safety, infection control, disaster 20%
Environment preparedness, ethical practice, legal
responsibilities
Health Promotion and 51-100 Growth and development, prenatal care, 20%
Maintenance immunizations, health screening, client
education
Psychosocial Integrity 101-150 Therapeutic communication, coping 20%
mechanisms, mental health disorders,
cultural sensitivity, grief and loss
Physiological Integrity: Basic 151-200 Mobility, nutrition, elimination, sleep, pain 20%
Care and Comfort management, hygiene
Physiological Integrity: 201-250 Medication administration, IV therapy, 20%
Pharmacological and Parenteral dosage calculations, adverse effects, blood
Therapies products
Page 2
,Q1. A patient with a history of chronic obstructive pulmonary disease (COPD) is admitted with acute
respiratory failure. The provider orders oxygen at 2 L/min via nasal cannula. After 30 minutes, the patient's
oxygen saturation is 88% and respiratory rate is 28 breaths/min. The patient is drowsy but arousable. The
nurse repositions the patient and increases oxygen to 4 L/min. Which action should the nurse prioritize next?
A. Document the change and reassess in 15 minutes.
B. Notify the provider of the patient's response and oxygen adjustment.
C. Prepare for intubation as the patient is at risk for respiratory arrest.
D. Obtain an arterial blood gas (ABG) to evaluate carbon dioxide levels.
Correct Answer: B. Notify the provider of the patient's response and oxygen adjustment.
Rationale: Increasing oxygen in a COPD patient can suppress hypoxic drive, leading to respiratory depression.
The nurse should notify the provider because the change was made without a new order, and the patient's
drowsiness may indicate hypercapnia. Documentation and reassessment are important but not the priority;
notifying the provider ensures timely evaluation and appropriate orders. Intubation is not indicated based on
current data. ABG may be needed but is not the immediate next step.
Why Wrong:
A - While documentation is important, the nurse acted without an order and must report this to the provider
before further reassessment.
C - There is no indication of impending respiratory arrest; the patient is stable with oxygen saturation above
85% and arousable.
D - An ABG may be ordered, but the priority is to communicate the unauthorized oxygen change and obtain
further orders.
Reference: Ignatavicius, D.D., Workman, M.L., & Rebar, C.R. (2021). Medical-Surgical Nursing: Concepts for
Interprofessional Collaborative Care, 10th Ed., Ch. 28.
Q2. A nurse is preparing to administer a blood transfusion to a patient. The patient has a history of multiple
transfusions and is at risk for a febrile non-hemolytic transfusion reaction. Which intervention is most
effective in reducing this risk?
A. Administer an antipyretic 30 minutes before starting the transfusion.
B. Use a leukocyte-reduced blood product.
C. Slow the infusion rate to 50 mL/hr for the first 15 minutes.
D. Pre-medicate with an antihistamine and a corticosteroid.
Correct Answer: B. Use a leukocyte-reduced blood product.
Rationale: Febrile non-hemolytic transfusion reactions are caused by antibodies to donor leukocytes.
Leukocyte-reduced (leukoreduced) blood products remove most white blood cells, significantly decreasing the risk.
While antipyretics and antihistamines may manage symptoms, they do not prevent the underlying immune response.
Slowing the infusion rate is standard for monitoring but does not reduce the risk of reaction.
Why Wrong:
A - Antipyretics reduce fever but do not prevent the leukocyte-mediated reaction.
C - Slowing the rate allows for early detection but does not prevent the reaction.
D - Pre-medication with antihistamines and corticosteroids is not standard for preventing febrile
non-hemolytic reactions; they are used for allergic reactions.
Reference: Gulanick, M., & Myers, J.L. (2022). Nursing Care Plans: Diagnoses, Interventions, and Outcomes, 10th
Ed., Ch. 14.
Q3. A nurse is assessing a patient who has a chest tube connected to a dry suction water seal drainage system.
The nurse notes that the water seal chamber has continuous bubbling. Which action should the nurse take
first?
A. Clamp the chest tube near the insertion site.
B. Check the drainage system for air leaks.
Page 3
, C. Notify the provider immediately.
D. Increase the suction pressure until bubbling stops.
Correct Answer: B. Check the drainage system for air leaks.
Rationale: Continuous bubbling in the water seal chamber indicates an air leak in the system. The nurse should first check for
visible leaks in the connections or tubing. Clamping the chest tube is dangerous as it can cause tension pneumothorax.
Notifying the provider is appropriate after identifying the source. Adjusting suction is not indicated for an air leak.
Why Wrong:
A - Clamping can lead to tension pneumothorax and is only done under specific orders or during system change.
C - The provider should be notified after the nurse has assessed and attempted to resolve the issue.
D - Increasing suction does not fix an air leak and may worsen the problem.
Reference: Sole, M.L., Klein, D.G., & Moseley, M.J. (2021). Introduction to Critical Care Nursing, 8th Ed., Ch. 9.
Q4. A patient is receiving a continuous intravenous infusion of heparin for treatment of deep vein
thrombosis. The current aPTT is 90 seconds (therapeutic range 60-80 seconds). The nurse notes that the
patient has hematuria and oozing from the IV site. What is the nurse's priority action?
A. Administer protamine sulfate as per protocol.
B. Decrease the heparin infusion rate by 50%.
C. Stop the heparin infusion immediately.
D. Draw a stat aPTT and repeat in 6 hours.
Correct Answer: C. Stop the heparin infusion immediately.
Rationale: The patient has a supratherapeutic aPTT and signs of bleeding (hematuria, oozing). The priority is to
stop the heparin infusion to prevent further bleeding. After stopping, the nurse should notify the provider and
prepare to administer protamine sulfate if needed. Decreasing the rate is insufficient given the active bleeding.
Drawing aPTT is important but not the first action.
Why Wrong:
A - Protamine sulfate is the antidote but should be given only after stopping the infusion and obtaining an
order; not the first action.
B - Decreasing the rate may be appropriate for a mildly elevated aPTT without bleeding, but active bleeding
requires immediate cessation.
D - Drawing a stat aPTT delays the critical intervention of stopping the heparin.
Reference: Lehne, R.A., & Rosenthal, L.D. (2022). Pharmacology for Nursing Care, 11th Ed., Ch. 36.
Q5. A nurse is caring for a patient who has a nasogastric tube set to low intermittent suction. The patient's
serum potassium is 3.2 mEq/L (normal 3.5-5.0). Which assessment finding is most consistent with this
electrolyte imbalance?
A. Hyperactive deep tendon reflexes and tetany.
B. Muscle weakness and shallow respirations.
C. Bradycardia and peaked T waves on ECG.
D. Bowel sounds hyperactive and diarrhea.
Correct Answer: B. Muscle weakness and shallow respirations.
Rationale: Hypokalemia (K+ 3.2) causes muscle weakness, including respiratory muscles, leading to shallow
respirations. Other signs include cardiac dysrhythmias (U waves, not peaked T waves), and decreased bowel
motility (ileus), not diarrhea. Hyperactive reflexes and tetany are seen with hypocalcemia. Peaked T waves and
bradycardia are associated with hyperkalemia.
Why Wrong:
A - Hyperactive reflexes and tetany are signs of hypocalcemia, not hypokalemia.
C - Bradycardia and peaked T waves are classic for hyperkalemia, not hypokalemia.
D - Hypokalemia causes decreased bowel motility, not hyperactive bowel sounds or diarrhea.
Page 4
Verified Questions
NU 301 Unit 1 Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY GRADED A+.
100% Verified Solutions | Updated Per Latest NCLEX-RN® Test Plan | Graded A+
This comprehensive exam preparation resource contains 250 NCLEX-style fundamentals of nursing
questions with detailed rationales. Designed to align with the latest NCLEX-RN® test plan, it covers
essential nursing concepts including safety, infection control, basic care and comfort, and
pharmacological principles. Each question is accompanied by a rationale explaining the correct answer
and distractor analysis to reinforce critical thinking. Ideal for students seeking to master foundational
nursing knowledge and excel in the NU 301 Unit 1 exam.
Key Features:
250 NCLEX-style questions with rationales
Coverage of safety, infection control, and basic care
Pharmacological and parenteral therapy principles
Health promotion and maintenance concepts
Psychosocial integrity and therapeutic communication
Evidence-based practice and clinical decision-making
Updates for 2026:
- Updated to reflect 2026-2027 NCLEX-RN® test plan changes
- Revised rationales with current evidence-based guidelines
- Added new questions on emerging infection control protocols
- Enhanced distractor explanations for improved critical thinking
- Incorporated client-centered care and cultural competency scenarios
Abstract:
This document serves as a definitive study guide for the NU 301 Unit 1 exam, focusing on fundamentals of nursing
as tested by the NCLEX-RN®. It comprises 250 carefully curated questions that span key domains: safe and
effective care environment, health promotion, psychosocial integrity, and physiological integrity. Each question
includes a rationale that not only explains the correct answer but also analyzes common distractors, thereby
deepening the learner's understanding of nursing principles. The content is aligned with the 2026-2027 academic
year and the latest NCLEX-RN® test plan, ensuring relevance and accuracy. By engaging with these questions,
students will develop the clinical judgment necessary to prioritize care, anticipate complications, and implement
evidence-based interventions. This resource is designed to build confidence and competence, ultimately preparing
students for both the unit exam and the NCLEX-RN® licensure examination.
Keywords:
fundamentals of nursing, NCLEX-RN preparation, 250 questions with rationales, safety and infection control,
pharmacology basics, therapeutic communication, clinical judgment, NU 301 exam
Answer Format:
Each question is followed by the correct answer, a detailed rationale explaining the underlying nursing concept,
and an analysis of why each distractor is incorrect. Rationales incorporate evidence-based practice and highlight
key points to remember for the exam. This format promotes active learning and helps students identify common
reasoning errors.
Compliance Checklist:
Aligned with 2026-2027 NCLEX-RN® test plan
Page 1
, Questions reviewed by subject matter experts
Rationales cite current nursing textbooks and guidelines
Distractor analysis addresses common student misconceptions
Content covers all fundamental nursing domains
Suitable for self-assessment and group study
Content Area Overview:
Content Area Questions Key Topics Weight
Safe and Effective Care 1-50 Safety, infection control, disaster 20%
Environment preparedness, ethical practice, legal
responsibilities
Health Promotion and 51-100 Growth and development, prenatal care, 20%
Maintenance immunizations, health screening, client
education
Psychosocial Integrity 101-150 Therapeutic communication, coping 20%
mechanisms, mental health disorders,
cultural sensitivity, grief and loss
Physiological Integrity: Basic 151-200 Mobility, nutrition, elimination, sleep, pain 20%
Care and Comfort management, hygiene
Physiological Integrity: 201-250 Medication administration, IV therapy, 20%
Pharmacological and Parenteral dosage calculations, adverse effects, blood
Therapies products
Page 2
,Q1. A patient with a history of chronic obstructive pulmonary disease (COPD) is admitted with acute
respiratory failure. The provider orders oxygen at 2 L/min via nasal cannula. After 30 minutes, the patient's
oxygen saturation is 88% and respiratory rate is 28 breaths/min. The patient is drowsy but arousable. The
nurse repositions the patient and increases oxygen to 4 L/min. Which action should the nurse prioritize next?
A. Document the change and reassess in 15 minutes.
B. Notify the provider of the patient's response and oxygen adjustment.
C. Prepare for intubation as the patient is at risk for respiratory arrest.
D. Obtain an arterial blood gas (ABG) to evaluate carbon dioxide levels.
Correct Answer: B. Notify the provider of the patient's response and oxygen adjustment.
Rationale: Increasing oxygen in a COPD patient can suppress hypoxic drive, leading to respiratory depression.
The nurse should notify the provider because the change was made without a new order, and the patient's
drowsiness may indicate hypercapnia. Documentation and reassessment are important but not the priority;
notifying the provider ensures timely evaluation and appropriate orders. Intubation is not indicated based on
current data. ABG may be needed but is not the immediate next step.
Why Wrong:
A - While documentation is important, the nurse acted without an order and must report this to the provider
before further reassessment.
C - There is no indication of impending respiratory arrest; the patient is stable with oxygen saturation above
85% and arousable.
D - An ABG may be ordered, but the priority is to communicate the unauthorized oxygen change and obtain
further orders.
Reference: Ignatavicius, D.D., Workman, M.L., & Rebar, C.R. (2021). Medical-Surgical Nursing: Concepts for
Interprofessional Collaborative Care, 10th Ed., Ch. 28.
Q2. A nurse is preparing to administer a blood transfusion to a patient. The patient has a history of multiple
transfusions and is at risk for a febrile non-hemolytic transfusion reaction. Which intervention is most
effective in reducing this risk?
A. Administer an antipyretic 30 minutes before starting the transfusion.
B. Use a leukocyte-reduced blood product.
C. Slow the infusion rate to 50 mL/hr for the first 15 minutes.
D. Pre-medicate with an antihistamine and a corticosteroid.
Correct Answer: B. Use a leukocyte-reduced blood product.
Rationale: Febrile non-hemolytic transfusion reactions are caused by antibodies to donor leukocytes.
Leukocyte-reduced (leukoreduced) blood products remove most white blood cells, significantly decreasing the risk.
While antipyretics and antihistamines may manage symptoms, they do not prevent the underlying immune response.
Slowing the infusion rate is standard for monitoring but does not reduce the risk of reaction.
Why Wrong:
A - Antipyretics reduce fever but do not prevent the leukocyte-mediated reaction.
C - Slowing the rate allows for early detection but does not prevent the reaction.
D - Pre-medication with antihistamines and corticosteroids is not standard for preventing febrile
non-hemolytic reactions; they are used for allergic reactions.
Reference: Gulanick, M., & Myers, J.L. (2022). Nursing Care Plans: Diagnoses, Interventions, and Outcomes, 10th
Ed., Ch. 14.
Q3. A nurse is assessing a patient who has a chest tube connected to a dry suction water seal drainage system.
The nurse notes that the water seal chamber has continuous bubbling. Which action should the nurse take
first?
A. Clamp the chest tube near the insertion site.
B. Check the drainage system for air leaks.
Page 3
, C. Notify the provider immediately.
D. Increase the suction pressure until bubbling stops.
Correct Answer: B. Check the drainage system for air leaks.
Rationale: Continuous bubbling in the water seal chamber indicates an air leak in the system. The nurse should first check for
visible leaks in the connections or tubing. Clamping the chest tube is dangerous as it can cause tension pneumothorax.
Notifying the provider is appropriate after identifying the source. Adjusting suction is not indicated for an air leak.
Why Wrong:
A - Clamping can lead to tension pneumothorax and is only done under specific orders or during system change.
C - The provider should be notified after the nurse has assessed and attempted to resolve the issue.
D - Increasing suction does not fix an air leak and may worsen the problem.
Reference: Sole, M.L., Klein, D.G., & Moseley, M.J. (2021). Introduction to Critical Care Nursing, 8th Ed., Ch. 9.
Q4. A patient is receiving a continuous intravenous infusion of heparin for treatment of deep vein
thrombosis. The current aPTT is 90 seconds (therapeutic range 60-80 seconds). The nurse notes that the
patient has hematuria and oozing from the IV site. What is the nurse's priority action?
A. Administer protamine sulfate as per protocol.
B. Decrease the heparin infusion rate by 50%.
C. Stop the heparin infusion immediately.
D. Draw a stat aPTT and repeat in 6 hours.
Correct Answer: C. Stop the heparin infusion immediately.
Rationale: The patient has a supratherapeutic aPTT and signs of bleeding (hematuria, oozing). The priority is to
stop the heparin infusion to prevent further bleeding. After stopping, the nurse should notify the provider and
prepare to administer protamine sulfate if needed. Decreasing the rate is insufficient given the active bleeding.
Drawing aPTT is important but not the first action.
Why Wrong:
A - Protamine sulfate is the antidote but should be given only after stopping the infusion and obtaining an
order; not the first action.
B - Decreasing the rate may be appropriate for a mildly elevated aPTT without bleeding, but active bleeding
requires immediate cessation.
D - Drawing a stat aPTT delays the critical intervention of stopping the heparin.
Reference: Lehne, R.A., & Rosenthal, L.D. (2022). Pharmacology for Nursing Care, 11th Ed., Ch. 36.
Q5. A nurse is caring for a patient who has a nasogastric tube set to low intermittent suction. The patient's
serum potassium is 3.2 mEq/L (normal 3.5-5.0). Which assessment finding is most consistent with this
electrolyte imbalance?
A. Hyperactive deep tendon reflexes and tetany.
B. Muscle weakness and shallow respirations.
C. Bradycardia and peaked T waves on ECG.
D. Bowel sounds hyperactive and diarrhea.
Correct Answer: B. Muscle weakness and shallow respirations.
Rationale: Hypokalemia (K+ 3.2) causes muscle weakness, including respiratory muscles, leading to shallow
respirations. Other signs include cardiac dysrhythmias (U waves, not peaked T waves), and decreased bowel
motility (ileus), not diarrhea. Hyperactive reflexes and tetany are seen with hypocalcemia. Peaked T waves and
bradycardia are associated with hyperkalemia.
Why Wrong:
A - Hyperactive reflexes and tetany are signs of hypocalcemia, not hypokalemia.
C - Bradycardia and peaked T waves are classic for hyperkalemia, not hypokalemia.
D - Hypokalemia causes decreased bowel motility, not hyperactive bowel sounds or diarrhea.
Page 4
