The Ultimate and Complete ATI RN Critical Thinking Entrance/Exit Exam Study Guide
2025–2026, Covering Critical Thinking and Clinical Reasoning, Logical Analysis and
Problem-Solving, Prioritization and Decision-Making, Interpretation of Information,
Recognizing Assumptions, Drawing Valid Inferences, Deductive and Inductive
Reasoning, Analysis and Evaluation of Arguments, Identifying Relevant Information,
Logical Sequencing, Applying Evidence to Hypothetical Nursing Scenarios, Evaluating
Conclusions, Self-Regulation and Reflective Thinking, Clinical Judgment Frameworks,
Practice Questions With Detailed Rationales, Realistic Nursing-Based Reasoning
Scenarios, and Proven Strategies for Preparing for ATI RN Critical Thinking Entrance
and Exit Assessments
Question 1: A nurse is assessing a patient who has just been informed of a new diagnosis of
type 2 diabetes mellitus. The patient states, "I can't have this. The test results must be
wrong." Which critical thinking attitude is the patient primarily demonstrating?
A. Intellectual humility
B. Intellectual perseverance
C. Intellectual empathy
D. Intellectual courage
CORRECT ANSWER: A. Intellectual humility
Rationale: Intellectual humility involves recognizing the limits of one's knowledge and being
open to new information. The patient's denial of the diagnosis, despite evidence, shows a
resistance to acknowledging a reality that challenges their self-concept. However, it primarily
represents a failure of intellectual humility, as the patient is not acknowledging the validity of
the new information. The other options are not the best fit. Intellectual perseverance is about
working through difficulties, empathy is understanding others' perspectives, and courage is
about confronting fears, none of which are primarily demonstrated in this denial.
Question 2: A charge nurse is evaluating a new graduate's critical thinking skills. Which action
by the new graduate demonstrates the highest level of critical thinking in clinical judgment?
A. Following a standard procedure for wound care without deviation.
B. Consulting a colleague when unsure about a patient's medication.
C. Recognizing a subtle change in a patient's vital signs and investigating the underlying cause.
D. Documenting patient care thoroughly and accurately after each shift.
CORRECT ANSWER: C. Recognizing a subtle change in a patient's vital signs and investigating
the underlying cause.
Rationale: Critical thinking in nursing involves interpretation, analysis, and inference.
Recognizing a subtle change and investigating the cause (C) demonstrates the ability to go
beyond surface-level data and apply analytical skills to identify potential problems, which is a
higher-order cognitive skill. Following a procedure (A) is task-oriented, consulting a colleague
,(B) is a good practice but may not reflect independent critical thinking, and documentation (D)
is a necessary but routine task.
Question 3: A patient with chronic obstructive pulmonary disease (COPD) has an oxygen
saturation of 88%. The nurse notes that the patient is on a 2L/min nasal cannula. The nurse's
first action should be to:
A. Increase the oxygen flow rate to 4L/min.
B. Assess the patient's respiratory rate and depth, and auscultate lung sounds.
C. Call the physician immediately.
D. Suction the patient's airway.
CORRECT ANSWER: B. Assess the patient's respiratory rate and depth, and auscultate lung
sounds.
Rationale: The first step in the nursing process and critical thinking is assessment. Before
implementing any intervention, the nurse must gather more data. Assessing respiratory effort
and lung sounds (B) provides essential context for the low SpO2. Simply increasing oxygen (A)
could be harmful, especially in a COPD patient who may be a chronic CO2 retainer. Calling the
physician (C) is premature without a full assessment, and suctioning (D) is only indicated if
secretions are the likely cause, which is unknown at this point.
Question 4: Which of the following is the most significant barrier to critical thinking in the
clinical setting?
A. A lack of clinical experience.
B. A strong reliance on evidenced-based practice.
C. A rigid adherence to established routines and policies.
D. A collaborative and interdisciplinary team environment.
CORRECT ANSWER: C. A rigid adherence to established routines and policies.
Rationale: Rigid adherence to routines can lead to "routine" thinking, where nurses perform
tasks without questioning or adapting to individual patient needs. This is a significant barrier to
critical thinking because it stifles curiosity and the evaluation of alternatives. Lack of experience
(A) is a challenge but can be mitigated. Evidence-based practice (B) and collaboration (D) are
facilitators, not barriers, to critical thinking.
Question 5: A nurse is caring for a patient with a new onset of confusion. Which of the
following would be the best initial critical thinking approach to determine the cause?
A. Review the patient's medication list for newly prescribed drugs.
B. Place the patient in a room near the nurses' station for observation.
C. Ask the patient's family if the patient has a history of dementia.
D. Reorient the patient to time, place, and person.
,CORRECT ANSWER: A. Review the patient's medication list for newly prescribed drugs.
Rationale: New-onset confusion in an older adult is often multifactorial. A critical thinking
approach involves generating hypotheses. Medication side effects (A) are a common and
reversible cause of confusion and should be one of the first items to investigate. While
observation (B), family history (C), and reorientation (D) are all important aspects of care, they
are not the best initial step to determine an underlying physiological cause from a critical
thinking perspective.
Question 6: A nurse is reviewing a patient's lab results and notes a potassium level of 6.1
mEq/L. The patient is on a potassium-sparing diuretic. Which of the following actions reflects
the best clinical judgment?
A. Document the finding and re-check the lab in 4 hours.
B. Hold the next dose of the diuretic and notify the physician.
C. Administer a dose of sodium polystyrene sulfonate (Kayexalate) as a PRN order.
D. Increase the patient's fluid intake to help dilute the potassium.
CORRECT ANSWER: B. Hold the next dose of the diuretic and notify the physician.
Rationale: A potassium level of 6.1 mEq/L is critically high (hyperkalemia). The nurse's critical
thinking must recognize the immediate need to stop further potassium intake or retention. The
potassium-sparing diuretic is contributing to this, so holding it and notifying the physician (B) is
the most appropriate and safe initial action. Documenting and re-checking (A) delays care.
Administering Kayexalate (C) is a medical order and should be verified as appropriate for this
patient; it should not be given without a physician's order. Increasing fluids (D) is not an
effective treatment for hyperkalemia.
Question 7: A patient is refusing a blood transfusion due to religious beliefs. The nurse's
response should be based on which ethical principle?
A. Beneficence
B. Non-maleficence
C. Autonomy
D. Justice
CORRECT ANSWER: C. Autonomy
Rationale: Autonomy is the principle of respecting a person's right to make their own decisions,
even if those decisions are not in their best medical interest (as defined by the healthcare
team). In this situation, the patient's right to refuse the transfusion based on their religious
beliefs must be respected. Beneficence (A) is doing good, non-maleficence (B) is avoiding harm,
and justice (D) is fairness; while all are important, the patient's self-determination is the central
ethical principle here.
, Question 8: Which of the following is an example of using inductive reasoning in clinical
practice?
A. A nurse follows a protocol for preventing pressure ulcers for all immobile patients.
B. A nurse observes that a patient's blood pressure drops after administering a specific
medication and suspects a causal link.
C. A nurse uses a clinical algorithm to decide on pain management.
D. A nurse applies a standard formula to calculate a medication dosage.
CORRECT ANSWER: B. A nurse observes that a patient's blood pressure drops after
administering a specific medication and suspects a causal link.
Rationale: Inductive reasoning is a bottom-up approach where specific observations (blood
pressure drop after medication) lead to the formation of a general hypothesis or conclusion
(suspecting a causal link). This contrasts with deductive reasoning, which applies general
principles to specific cases. Following a protocol (A), using an algorithm (C), and applying a
formula (D) are all examples of deductive reasoning.
Question 9: A nurse is caring for a patient with a nasogastric (NG) tube who is reporting
severe nausea and abdominal distention. The nurse's critical thinking should first lead them
to:
A. Check the placement of the NG tube and the patency of the suction.
B. Administer an antiemetic as ordered.
C. Decrease the suction pressure.
D. Remove the NG tube immediately.
CORRECT ANSWER: A. Check the placement of the NG tube and the patency of the suction.
Rationale: The patient's symptoms (nausea, distention) are classic signs of a possible
malpositioned or occluded NG tube. The logical first step in the critical thinking process is to
verify that the tube is functioning correctly (A). This is a form of assessment to confirm the
problem before implementing an intervention like medication (B) or adjusting settings (C).
Removing the tube (D) is a drastic measure and not the first step.
Question 10: A nurse is educating a patient about a new medication. The patient asks, "Will
this interact with my herbal supplements?" Which of the following is the best critical thinking
response?
A. "Herbal supplements are generally safe and won't interact with your medication."
B. "I am not sure. You should ask your herbalist."
C. "It's possible. It's important to check for potential interactions. What supplements are you
taking?"
D. "You should stop taking all herbal supplements immediately."
2025–2026, Covering Critical Thinking and Clinical Reasoning, Logical Analysis and
Problem-Solving, Prioritization and Decision-Making, Interpretation of Information,
Recognizing Assumptions, Drawing Valid Inferences, Deductive and Inductive
Reasoning, Analysis and Evaluation of Arguments, Identifying Relevant Information,
Logical Sequencing, Applying Evidence to Hypothetical Nursing Scenarios, Evaluating
Conclusions, Self-Regulation and Reflective Thinking, Clinical Judgment Frameworks,
Practice Questions With Detailed Rationales, Realistic Nursing-Based Reasoning
Scenarios, and Proven Strategies for Preparing for ATI RN Critical Thinking Entrance
and Exit Assessments
Question 1: A nurse is assessing a patient who has just been informed of a new diagnosis of
type 2 diabetes mellitus. The patient states, "I can't have this. The test results must be
wrong." Which critical thinking attitude is the patient primarily demonstrating?
A. Intellectual humility
B. Intellectual perseverance
C. Intellectual empathy
D. Intellectual courage
CORRECT ANSWER: A. Intellectual humility
Rationale: Intellectual humility involves recognizing the limits of one's knowledge and being
open to new information. The patient's denial of the diagnosis, despite evidence, shows a
resistance to acknowledging a reality that challenges their self-concept. However, it primarily
represents a failure of intellectual humility, as the patient is not acknowledging the validity of
the new information. The other options are not the best fit. Intellectual perseverance is about
working through difficulties, empathy is understanding others' perspectives, and courage is
about confronting fears, none of which are primarily demonstrated in this denial.
Question 2: A charge nurse is evaluating a new graduate's critical thinking skills. Which action
by the new graduate demonstrates the highest level of critical thinking in clinical judgment?
A. Following a standard procedure for wound care without deviation.
B. Consulting a colleague when unsure about a patient's medication.
C. Recognizing a subtle change in a patient's vital signs and investigating the underlying cause.
D. Documenting patient care thoroughly and accurately after each shift.
CORRECT ANSWER: C. Recognizing a subtle change in a patient's vital signs and investigating
the underlying cause.
Rationale: Critical thinking in nursing involves interpretation, analysis, and inference.
Recognizing a subtle change and investigating the cause (C) demonstrates the ability to go
beyond surface-level data and apply analytical skills to identify potential problems, which is a
higher-order cognitive skill. Following a procedure (A) is task-oriented, consulting a colleague
,(B) is a good practice but may not reflect independent critical thinking, and documentation (D)
is a necessary but routine task.
Question 3: A patient with chronic obstructive pulmonary disease (COPD) has an oxygen
saturation of 88%. The nurse notes that the patient is on a 2L/min nasal cannula. The nurse's
first action should be to:
A. Increase the oxygen flow rate to 4L/min.
B. Assess the patient's respiratory rate and depth, and auscultate lung sounds.
C. Call the physician immediately.
D. Suction the patient's airway.
CORRECT ANSWER: B. Assess the patient's respiratory rate and depth, and auscultate lung
sounds.
Rationale: The first step in the nursing process and critical thinking is assessment. Before
implementing any intervention, the nurse must gather more data. Assessing respiratory effort
and lung sounds (B) provides essential context for the low SpO2. Simply increasing oxygen (A)
could be harmful, especially in a COPD patient who may be a chronic CO2 retainer. Calling the
physician (C) is premature without a full assessment, and suctioning (D) is only indicated if
secretions are the likely cause, which is unknown at this point.
Question 4: Which of the following is the most significant barrier to critical thinking in the
clinical setting?
A. A lack of clinical experience.
B. A strong reliance on evidenced-based practice.
C. A rigid adherence to established routines and policies.
D. A collaborative and interdisciplinary team environment.
CORRECT ANSWER: C. A rigid adherence to established routines and policies.
Rationale: Rigid adherence to routines can lead to "routine" thinking, where nurses perform
tasks without questioning or adapting to individual patient needs. This is a significant barrier to
critical thinking because it stifles curiosity and the evaluation of alternatives. Lack of experience
(A) is a challenge but can be mitigated. Evidence-based practice (B) and collaboration (D) are
facilitators, not barriers, to critical thinking.
Question 5: A nurse is caring for a patient with a new onset of confusion. Which of the
following would be the best initial critical thinking approach to determine the cause?
A. Review the patient's medication list for newly prescribed drugs.
B. Place the patient in a room near the nurses' station for observation.
C. Ask the patient's family if the patient has a history of dementia.
D. Reorient the patient to time, place, and person.
,CORRECT ANSWER: A. Review the patient's medication list for newly prescribed drugs.
Rationale: New-onset confusion in an older adult is often multifactorial. A critical thinking
approach involves generating hypotheses. Medication side effects (A) are a common and
reversible cause of confusion and should be one of the first items to investigate. While
observation (B), family history (C), and reorientation (D) are all important aspects of care, they
are not the best initial step to determine an underlying physiological cause from a critical
thinking perspective.
Question 6: A nurse is reviewing a patient's lab results and notes a potassium level of 6.1
mEq/L. The patient is on a potassium-sparing diuretic. Which of the following actions reflects
the best clinical judgment?
A. Document the finding and re-check the lab in 4 hours.
B. Hold the next dose of the diuretic and notify the physician.
C. Administer a dose of sodium polystyrene sulfonate (Kayexalate) as a PRN order.
D. Increase the patient's fluid intake to help dilute the potassium.
CORRECT ANSWER: B. Hold the next dose of the diuretic and notify the physician.
Rationale: A potassium level of 6.1 mEq/L is critically high (hyperkalemia). The nurse's critical
thinking must recognize the immediate need to stop further potassium intake or retention. The
potassium-sparing diuretic is contributing to this, so holding it and notifying the physician (B) is
the most appropriate and safe initial action. Documenting and re-checking (A) delays care.
Administering Kayexalate (C) is a medical order and should be verified as appropriate for this
patient; it should not be given without a physician's order. Increasing fluids (D) is not an
effective treatment for hyperkalemia.
Question 7: A patient is refusing a blood transfusion due to religious beliefs. The nurse's
response should be based on which ethical principle?
A. Beneficence
B. Non-maleficence
C. Autonomy
D. Justice
CORRECT ANSWER: C. Autonomy
Rationale: Autonomy is the principle of respecting a person's right to make their own decisions,
even if those decisions are not in their best medical interest (as defined by the healthcare
team). In this situation, the patient's right to refuse the transfusion based on their religious
beliefs must be respected. Beneficence (A) is doing good, non-maleficence (B) is avoiding harm,
and justice (D) is fairness; while all are important, the patient's self-determination is the central
ethical principle here.
, Question 8: Which of the following is an example of using inductive reasoning in clinical
practice?
A. A nurse follows a protocol for preventing pressure ulcers for all immobile patients.
B. A nurse observes that a patient's blood pressure drops after administering a specific
medication and suspects a causal link.
C. A nurse uses a clinical algorithm to decide on pain management.
D. A nurse applies a standard formula to calculate a medication dosage.
CORRECT ANSWER: B. A nurse observes that a patient's blood pressure drops after
administering a specific medication and suspects a causal link.
Rationale: Inductive reasoning is a bottom-up approach where specific observations (blood
pressure drop after medication) lead to the formation of a general hypothesis or conclusion
(suspecting a causal link). This contrasts with deductive reasoning, which applies general
principles to specific cases. Following a protocol (A), using an algorithm (C), and applying a
formula (D) are all examples of deductive reasoning.
Question 9: A nurse is caring for a patient with a nasogastric (NG) tube who is reporting
severe nausea and abdominal distention. The nurse's critical thinking should first lead them
to:
A. Check the placement of the NG tube and the patency of the suction.
B. Administer an antiemetic as ordered.
C. Decrease the suction pressure.
D. Remove the NG tube immediately.
CORRECT ANSWER: A. Check the placement of the NG tube and the patency of the suction.
Rationale: The patient's symptoms (nausea, distention) are classic signs of a possible
malpositioned or occluded NG tube. The logical first step in the critical thinking process is to
verify that the tube is functioning correctly (A). This is a form of assessment to confirm the
problem before implementing an intervention like medication (B) or adjusting settings (C).
Removing the tube (D) is a drastic measure and not the first step.
Question 10: A nurse is educating a patient about a new medication. The patient asks, "Will
this interact with my herbal supplements?" Which of the following is the best critical thinking
response?
A. "Herbal supplements are generally safe and won't interact with your medication."
B. "I am not sure. You should ask your herbalist."
C. "It's possible. It's important to check for potential interactions. What supplements are you
taking?"
D. "You should stop taking all herbal supplements immediately."
