ATI PN COMPREHENSIVE PREDICTOR
FORM A, B & C | QUESTIONS &
ANSWERS WITH RATIONALE 2026/2027
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
ATI PN COMPREHENSIVE PREDICTOR FORM A, B & C | QUESTIONS & ANSWERS WITH RATIONALE
2026/2027. It contains 150 carefully selected questions that reflect the most current exam content and testing
strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - ATI PN Comprehensive Predictor FORM A B & C & WITH Rationale 2026/2027
Practical Nursing Comprehensive Predictor Undergraduate YEAR 3 / Pre-licensure
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-25 Finding, Teaching, Indicates, Reviewing, Prescribed
Safety AND Infection Control 26-50 Finding, Indicates, Immediate, Caring, Blood
Health Promotion AND 51-75 Finding, Prescribed, Teaching, Indicates, Requires
Maintenance
Psychosocial Integrity 76-100 Finding, Indicates, Transfusion, Reviewing, Blood
Basic CARE AND Comfort 101-125 Finding, Prescribed, Indicates, Immediate, Receiving
Pharmacological Therapies 126-150 Finding, Receiving, Indicates, Prescribed, Continuous
TOTAL 150 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A nurse is reviewing a client's arterial blood gas results: pH 7.30, PaCO2 50 mm Hg, HCO3
26 mEq/L. Which compensatory mechanism is the client most likely to exhibit?
A. Hyperventilation B. Renal retention of bicarbonate
C. Renal excretion of hydrogen ions D. Increased respiratory rate
Correct: C - Renal excretion of hydrogen ions
Rationale:The ABG shows respiratory acidosis (low pH, high PaCO2, normal HCO3). The
primary compensation for a chronic respiratory acidosis is renal: the kidneys excrete
hydrogen ions and reabsorb bicarbonate to buffer the acidosis. Hyperventilation would be a
compensatory response for metabolic acidosis, not respiratory acidosis. Renal retention of
bicarbonate would worsen the alkalosis, not correct acidosis. Increased respiratory rate is a
compensatory mechanism for metabolic acidosis, not respiratory acidosis.
Why the other answers are wrong:
A. Hyperventilation is compensation for metabolic acidosis, not respiratory acidosis.
B. Retaining bicarbonate would further increase pH and is not the primary renal response to
respiratory acidosis.
D. Increased respiratory rate is a compensatory mechanism for metabolic acidosis, not
respiratory acidosis.
Reference: Harding, M., & Snyder, J. (2026). Winningham's Critical Thinking Cases in Nursing, 7th ed.,
Ch. 8.
Q2.
A client with type 2 diabetes is prescribed metformin. Which instruction is essential to
prevent a life-threatening adverse effect?
A. Take the medication with meals to reduce B. Report any episode of diarrhea or
gastrointestinal upset. vomiting to the provider immediately.
C. Avoid alcohol intake while taking this D. Monitor blood glucose levels twice daily.
medication.
Correct: C - Avoid alcohol intake while taking this medication.
Rationale:Metformin carries a risk of lactic acidosis, especially in clients with renal
impairment, hepatic disease, or excessive alcohol intake. Alcohol increases lactate production
and impairs lactate clearance, so advising the client to avoid alcohol is essential. Taking with
meals reduces GI upset but is not for a life-threatening effect. Reporting diarrhea/vomiting is
important but not the primary life-threatening risk. Monitoring glucose is routine but not
specific to preventing lactic acidosis.
Page 3
, Section A - Management OF CARE
Why the other answers are wrong:
A. Taking with meals reduces GI upset but does not prevent lactic acidosis.
B. Diarrhea/vomiting may cause dehydration but is not the life-threatening adverse effect of metformin.
D. Glucose monitoring is routine but does not prevent lactic acidosis.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th ed., Ch. 46.
Q3.
A nurse is assessing a client who has just returned from a cardiac catheterization. Which
finding requires immediate intervention?
A. Blood pressure 110/70 mm Hg, heart rate B. Serous drainage at the insertion site
90/min
C. Cool, pale foot with diminished pulse on D. Client reports thirst and requests water
the affected side
Correct: C - Cool, pale foot with diminished pulse on the affected side
Rationale:A cool, pale extremity with diminished pulse on the affected side indicates arterial
occlusion, a critical complication of cardiac catheterization that requires immediate
intervention to restore blood flow. The other findings are within normal expectations or less
urgent. Mild serous drainage is common, thirst may be due to contrast media or fasting, and
vital signs are stable.
Why the other answers are wrong:
A. These vital signs are stable and do not indicate a critical complication.
B. Serous drainage is a common finding at the insertion site.
D. Thirst is common after contrast administration and fasting.
Reference: Ignatavicius, D. (2026). Medical-Surgical Nursing, 10th ed., Ch. 33.
Q4.
Which of the following actions by a nurse demonstrates appropriate delegation to a
licensed practical nurse (LPN) in an acute care setting?
A. Assigning the LPN to perform the initial B. Delegating administration of IV push
assessment of a newly admitted client. morphine to an LPN who has completed
competency validation.
C. Asking the LPN to reinforce teaching D. Delegating the creation of the nursing
about wound care with a client. care plan to the LPN.
Correct: C - Asking the LPN to reinforce teaching about wound care with a client.
Rationale:Reinforcing teaching is within the LPN scope of practice. Initial assessments,
nursing care plans, and IV push medications (in most states) require the knowledge and
judgment of an RN. The RN cannot delegate these tasks to an LPN.
Why the other answers are wrong:
Page 4
FORM A, B & C | QUESTIONS &
ANSWERS WITH RATIONALE 2026/2027
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
ATI PN COMPREHENSIVE PREDICTOR FORM A, B & C | QUESTIONS & ANSWERS WITH RATIONALE
2026/2027. It contains 150 carefully selected questions that reflect the most current exam content and testing
strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - ATI PN Comprehensive Predictor FORM A B & C & WITH Rationale 2026/2027
Practical Nursing Comprehensive Predictor Undergraduate YEAR 3 / Pre-licensure
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-25 Finding, Teaching, Indicates, Reviewing, Prescribed
Safety AND Infection Control 26-50 Finding, Indicates, Immediate, Caring, Blood
Health Promotion AND 51-75 Finding, Prescribed, Teaching, Indicates, Requires
Maintenance
Psychosocial Integrity 76-100 Finding, Indicates, Transfusion, Reviewing, Blood
Basic CARE AND Comfort 101-125 Finding, Prescribed, Indicates, Immediate, Receiving
Pharmacological Therapies 126-150 Finding, Receiving, Indicates, Prescribed, Continuous
TOTAL 150 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A nurse is reviewing a client's arterial blood gas results: pH 7.30, PaCO2 50 mm Hg, HCO3
26 mEq/L. Which compensatory mechanism is the client most likely to exhibit?
A. Hyperventilation B. Renal retention of bicarbonate
C. Renal excretion of hydrogen ions D. Increased respiratory rate
Correct: C - Renal excretion of hydrogen ions
Rationale:The ABG shows respiratory acidosis (low pH, high PaCO2, normal HCO3). The
primary compensation for a chronic respiratory acidosis is renal: the kidneys excrete
hydrogen ions and reabsorb bicarbonate to buffer the acidosis. Hyperventilation would be a
compensatory response for metabolic acidosis, not respiratory acidosis. Renal retention of
bicarbonate would worsen the alkalosis, not correct acidosis. Increased respiratory rate is a
compensatory mechanism for metabolic acidosis, not respiratory acidosis.
Why the other answers are wrong:
A. Hyperventilation is compensation for metabolic acidosis, not respiratory acidosis.
B. Retaining bicarbonate would further increase pH and is not the primary renal response to
respiratory acidosis.
D. Increased respiratory rate is a compensatory mechanism for metabolic acidosis, not
respiratory acidosis.
Reference: Harding, M., & Snyder, J. (2026). Winningham's Critical Thinking Cases in Nursing, 7th ed.,
Ch. 8.
Q2.
A client with type 2 diabetes is prescribed metformin. Which instruction is essential to
prevent a life-threatening adverse effect?
A. Take the medication with meals to reduce B. Report any episode of diarrhea or
gastrointestinal upset. vomiting to the provider immediately.
C. Avoid alcohol intake while taking this D. Monitor blood glucose levels twice daily.
medication.
Correct: C - Avoid alcohol intake while taking this medication.
Rationale:Metformin carries a risk of lactic acidosis, especially in clients with renal
impairment, hepatic disease, or excessive alcohol intake. Alcohol increases lactate production
and impairs lactate clearance, so advising the client to avoid alcohol is essential. Taking with
meals reduces GI upset but is not for a life-threatening effect. Reporting diarrhea/vomiting is
important but not the primary life-threatening risk. Monitoring glucose is routine but not
specific to preventing lactic acidosis.
Page 3
, Section A - Management OF CARE
Why the other answers are wrong:
A. Taking with meals reduces GI upset but does not prevent lactic acidosis.
B. Diarrhea/vomiting may cause dehydration but is not the life-threatening adverse effect of metformin.
D. Glucose monitoring is routine but does not prevent lactic acidosis.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th ed., Ch. 46.
Q3.
A nurse is assessing a client who has just returned from a cardiac catheterization. Which
finding requires immediate intervention?
A. Blood pressure 110/70 mm Hg, heart rate B. Serous drainage at the insertion site
90/min
C. Cool, pale foot with diminished pulse on D. Client reports thirst and requests water
the affected side
Correct: C - Cool, pale foot with diminished pulse on the affected side
Rationale:A cool, pale extremity with diminished pulse on the affected side indicates arterial
occlusion, a critical complication of cardiac catheterization that requires immediate
intervention to restore blood flow. The other findings are within normal expectations or less
urgent. Mild serous drainage is common, thirst may be due to contrast media or fasting, and
vital signs are stable.
Why the other answers are wrong:
A. These vital signs are stable and do not indicate a critical complication.
B. Serous drainage is a common finding at the insertion site.
D. Thirst is common after contrast administration and fasting.
Reference: Ignatavicius, D. (2026). Medical-Surgical Nursing, 10th ed., Ch. 33.
Q4.
Which of the following actions by a nurse demonstrates appropriate delegation to a
licensed practical nurse (LPN) in an acute care setting?
A. Assigning the LPN to perform the initial B. Delegating administration of IV push
assessment of a newly admitted client. morphine to an LPN who has completed
competency validation.
C. Asking the LPN to reinforce teaching D. Delegating the creation of the nursing
about wound care with a client. care plan to the LPN.
Correct: C - Asking the LPN to reinforce teaching about wound care with a client.
Rationale:Reinforcing teaching is within the LPN scope of practice. Initial assessments,
nursing care plans, and IV push medications (in most states) require the knowledge and
judgment of an RN. The RN cannot delegate these tasks to an LPN.
Why the other answers are wrong:
Page 4
