ATI PN COMPREHENSIVE
PREDICTOR WITH RATIONALE
2026/2027
120 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 WITH RATIONALE 2026/2027. It contains 120 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 120 Questions
Foundations - Application - ATI PN Comprehensive Predictor WITH Rationale 2026/2027 ATI PN
Comprehensive Predictor WITH Rationale 2026/2027 University
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-20 Finding, Teaching, Prescribed, Priority, Instruction
Safety AND Infection Control 21-40 Prescribed, Finding, Transfusion, Intervention, Appropriate
Health Promotion AND 41-60 Finding, Indicates, Immediate, Prescribed, Teaching
Maintenance
Psychosocial Integrity 61-80 Prescribed, Finding, Blood, Intervention, Indicates
Basic CARE AND Comfort 81-100 Teaching, Indicates, Appropriate, Medication, Preparing
Pharmacological Therapies 101-120 Finding, Indicates, Prescribed, Receiving, Chronic Kidney
Disease
TOTAL 120 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A nurse is teaching a client with heart failure about dietary sodium. Which instruction
reflects the most current evidence-based recommendation?
A. Limit sodium to 2,000 mg daily B. Avoid all processed foods
C. Limit sodium to 1,500 mg daily D. Use salt substitutes liberally
Correct: A - Limit sodium to 2,000 mg daily
Rationale:The 2022 AHA/ACC/HFSA guideline recommends a 2,000 mg sodium restriction
for heart failure patients with congestion, not 1,500 mg, which was from older guidelines.
Avoiding all processed foods is unrealistic and not evidence-based. Salt substitutes may
contain potassium and can be harmful with certain medications.
Why the other answers are wrong:
B. Avoiding all processed foods is overly restrictive and not the standard recommendation.
C. 1,500 mg is the older recommendation; current guidelines suggest 2,000 mg.
D. Salt substitutes can cause hyperkalemia, especially with ACE inhibitors or
potassium-sparing diuretics.
Reference: Heidenreich, P.A. et al. (2022). 2022 AHA/ACC/HFSA Guideline for the Management of Heart
Failure. Circulation, 145(18), e895-e1032.
Q2.
A nurse is caring for a client with chronic kidney disease stage 4. Which laboratory finding
warrants immediate notification of the provider?
A. Serum potassium 5.8 mEq/L B. Hemoglobin 10.2 g/dL
C. Serum creatinine 3.0 mg/dL D. BUN 45 mg/dL
Correct: A - Serum potassium 5.8 mEq/L
Rationale:Potassium 5.8 mEq/L indicates hyperkalemia, a life-threatening complication in
CKD that can cause cardiac arrhythmias. The other values are abnormal but not immediately
life-threatening; creatinine and BUN reflect chronic kidney dysfunction, and mild anemia is
expected.
Why the other answers are wrong:
B. Hemoglobin 10.2 g/dL is low but does not require immediate intervention; it is managed with
erythropoietin or iron.
C. Elevated creatinine is expected in CKD and does not require immediate notification unless
acute.
D. Elevated BUN is expected in CKD and is not an acute emergency.
Page 3
, Section A - Management OF CARE
Reference: Lewis, S.L. et al. (2026). Medical-Surgical Nursing, 11th ed., Ch. 54.
Q3.
A nurse is reviewing a client's arterial blood gas results: pH 7.31, PaCO2 50 mm Hg, HCO3
26 mEq/L. Which condition is most consistent with these values?
A. Metabolic acidosis B. Respiratory acidosis
C. Metabolic alkalosis D. Respiratory alkalosis
Correct: B - Respiratory acidosis
Rationale:The pH is acidotic (<7.35), PaCO2 is elevated (>45), and HCO3 is normal,
indicating respiratory acidosis. Metabolic acidosis would show low HCO3, and alkalosis would
show elevated pH.
Why the other answers are wrong:
A. Metabolic acidosis would have a low HCO3 and possibly a compensatory decrease in
PaCO2.
C. Alkalosis would have pH >7.45, which is not the case.
D. Respiratory alkalosis would have low PaCO2 and high pH.
Reference: Hinkle, J.L., & Cheever, K.H. (2026). Brunner & Suddarth's Textbook of Medical-Surgical
Nursing, 16th ed., Ch. 17.
Q4.
A nurse is preparing to administer an IV medication that is incompatible with the current
IV fluid. Which action is most appropriate?
A. Flush the IV line with normal saline B. Administer the medication through a
before and after administration separate IV line
C. Stop the IV fluid, administer the D. Check the compatibility of the medication
medication, and resume the IV fluid with the IV fluid before administration
Correct: B - Administer the medication through a separate IV line
Rationale:If a medication is incompatible with the IV fluid, the safest action is to use a
separate IV line to avoid mixing. Flushing or stopping the fluid does not guarantee prevention
of incompatibility. Checking compatibility is important but does not address the immediate
administration.
Why the other answers are wrong:
A. Flushing with saline does not eliminate the risk of incompatibility if the medication comes in
contact with the IV fluid.
C. Stopping the fluid temporarily may not be sufficient and could lead to line blockage or
precipitation.
D. Checking compatibility is a good practice but not the action to take when incompatibility is
Page 4
PREDICTOR WITH RATIONALE
2026/2027
120 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 WITH RATIONALE 2026/2027. It contains 120 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 120 Questions
Foundations - Application - ATI PN Comprehensive Predictor WITH Rationale 2026/2027 ATI PN
Comprehensive Predictor WITH Rationale 2026/2027 University
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-20 Finding, Teaching, Prescribed, Priority, Instruction
Safety AND Infection Control 21-40 Prescribed, Finding, Transfusion, Intervention, Appropriate
Health Promotion AND 41-60 Finding, Indicates, Immediate, Prescribed, Teaching
Maintenance
Psychosocial Integrity 61-80 Prescribed, Finding, Blood, Intervention, Indicates
Basic CARE AND Comfort 81-100 Teaching, Indicates, Appropriate, Medication, Preparing
Pharmacological Therapies 101-120 Finding, Indicates, Prescribed, Receiving, Chronic Kidney
Disease
TOTAL 120 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A nurse is teaching a client with heart failure about dietary sodium. Which instruction
reflects the most current evidence-based recommendation?
A. Limit sodium to 2,000 mg daily B. Avoid all processed foods
C. Limit sodium to 1,500 mg daily D. Use salt substitutes liberally
Correct: A - Limit sodium to 2,000 mg daily
Rationale:The 2022 AHA/ACC/HFSA guideline recommends a 2,000 mg sodium restriction
for heart failure patients with congestion, not 1,500 mg, which was from older guidelines.
Avoiding all processed foods is unrealistic and not evidence-based. Salt substitutes may
contain potassium and can be harmful with certain medications.
Why the other answers are wrong:
B. Avoiding all processed foods is overly restrictive and not the standard recommendation.
C. 1,500 mg is the older recommendation; current guidelines suggest 2,000 mg.
D. Salt substitutes can cause hyperkalemia, especially with ACE inhibitors or
potassium-sparing diuretics.
Reference: Heidenreich, P.A. et al. (2022). 2022 AHA/ACC/HFSA Guideline for the Management of Heart
Failure. Circulation, 145(18), e895-e1032.
Q2.
A nurse is caring for a client with chronic kidney disease stage 4. Which laboratory finding
warrants immediate notification of the provider?
A. Serum potassium 5.8 mEq/L B. Hemoglobin 10.2 g/dL
C. Serum creatinine 3.0 mg/dL D. BUN 45 mg/dL
Correct: A - Serum potassium 5.8 mEq/L
Rationale:Potassium 5.8 mEq/L indicates hyperkalemia, a life-threatening complication in
CKD that can cause cardiac arrhythmias. The other values are abnormal but not immediately
life-threatening; creatinine and BUN reflect chronic kidney dysfunction, and mild anemia is
expected.
Why the other answers are wrong:
B. Hemoglobin 10.2 g/dL is low but does not require immediate intervention; it is managed with
erythropoietin or iron.
C. Elevated creatinine is expected in CKD and does not require immediate notification unless
acute.
D. Elevated BUN is expected in CKD and is not an acute emergency.
Page 3
, Section A - Management OF CARE
Reference: Lewis, S.L. et al. (2026). Medical-Surgical Nursing, 11th ed., Ch. 54.
Q3.
A nurse is reviewing a client's arterial blood gas results: pH 7.31, PaCO2 50 mm Hg, HCO3
26 mEq/L. Which condition is most consistent with these values?
A. Metabolic acidosis B. Respiratory acidosis
C. Metabolic alkalosis D. Respiratory alkalosis
Correct: B - Respiratory acidosis
Rationale:The pH is acidotic (<7.35), PaCO2 is elevated (>45), and HCO3 is normal,
indicating respiratory acidosis. Metabolic acidosis would show low HCO3, and alkalosis would
show elevated pH.
Why the other answers are wrong:
A. Metabolic acidosis would have a low HCO3 and possibly a compensatory decrease in
PaCO2.
C. Alkalosis would have pH >7.45, which is not the case.
D. Respiratory alkalosis would have low PaCO2 and high pH.
Reference: Hinkle, J.L., & Cheever, K.H. (2026). Brunner & Suddarth's Textbook of Medical-Surgical
Nursing, 16th ed., Ch. 17.
Q4.
A nurse is preparing to administer an IV medication that is incompatible with the current
IV fluid. Which action is most appropriate?
A. Flush the IV line with normal saline B. Administer the medication through a
before and after administration separate IV line
C. Stop the IV fluid, administer the D. Check the compatibility of the medication
medication, and resume the IV fluid with the IV fluid before administration
Correct: B - Administer the medication through a separate IV line
Rationale:If a medication is incompatible with the IV fluid, the safest action is to use a
separate IV line to avoid mixing. Flushing or stopping the fluid does not guarantee prevention
of incompatibility. Checking compatibility is important but does not address the immediate
administration.
Why the other answers are wrong:
A. Flushing with saline does not eliminate the risk of incompatibility if the medication comes in
contact with the IV fluid.
C. Stopping the fluid temporarily may not be sufficient and could lead to line blockage or
precipitation.
D. Checking compatibility is a good practice but not the action to take when incompatibility is
Page 4
