CNOR CERTIFICATION EXAM Complete 100
Questions with Verified Answers | 2026/2027 Edition.
Question 1 (Multiple Choice)
A 68-year-old patient is scheduled for a total knee arthroplasty. Using the Perioperative
Nursing Data Set (PNDS), which nursing diagnosis takes priority based on the patient's age
and the nature of orthopedic surgery?
A) Risk for Delayed Surgical Recovery
B) Risk for Perioperative Positioning Injury
C) Risk for Infection
D) Ineffective Thermoregulation
[CORRECT: C]
Rationale: According to AORN Guidelines for Perioperative Practice and the PNDS
standardized language, "Risk for Infection" is a priority diagnosis for total joint arthroplasty
due to the catastrophic consequences of prosthetic joint infection. The 2026 guidelines
emphasize that implant-related infections require rigorous sterile technique and prophylactic
protocols. While positioning injury and thermoregulation are valid concerns, infection
prevention is the highest priority for implant surgery.
Question 2 (SATA)
Which of the following are officially recognized nursing diagnoses within the Perioperative
Nursing Data Set (PNDS)? (Select all that apply.)
A) Risk for Infection
B) Risk for Perioperative Positioning Injury
C) Ineffective Thermoregulation
D) Risk for Aspiration
E) Impaired Tissue Integrity
[CORRECT: A, B, C]
Rationale: The PNDS standardized language specifically includes "Risk for Infection," "Risk for
Perioperative Positioning Injury," and "Ineffective Thermoregulation" as core perioperative
nursing diagnoses. These diagnoses guide outcome identification and intervention selection
,across the perioperative continuum. While aspiration and tissue integrity are clinical
concerns, they are not among the primary PNDS diagnoses tested on the CNOR exam.
Question 3 (Multiple Choice)
A 4-year-old child is scheduled for tonsillectomy. Which PNDS nursing diagnosis is most critical
to address during the intraoperative phase?
A) Risk for Deficient Fluid Volume
B) Risk for Perioperative Hypothermia
C) Ineffective Thermoregulation
D) Anxiety
[CORRECT: C]
Rationale: "Ineffective Thermoregulation" is the critical PNDS diagnosis for pediatric patients
due to their disproportionate body surface area-to-mass ratio, limited subcutaneous fat, and
inability to shiver effectively. The AORN Guideline for Prevention of Unplanned Perioperative
Hypothermia requires active warming for pediatric patients, as hypothermia leads to
coagulopathy, delayed drug metabolism, and increased oxygen consumption.
Question 4 (Multiple Choice)
The perioperative nurse is verifying informed consent with a patient scheduled for
laparoscopic cholecystectomy. The patient has received 2 mg of midazolam IV five minutes
ago. What is the nurse's correct action?
A) Proceed with verification since the patient is still alert and oriented
B) Delay verification until the anxiolytic effects have completely worn off
C) Verify consent was properly witnessed and signed BEFORE the midazolam was
administered
D) Have the patient re-sign the consent form in the presence of the surgeon
[CORRECT: C]
Rationale: AORN standards and The Joint Commission require that informed consent be
verified and witnessed prior to administration of any anxiolytic or sedating medication. Once
midazolam is administered, the patient's judgment is pharmacologically impaired, invalidating
any subsequent consent verification. The nurse must confirm the original consent was
properly executed before premedication.
,Question 5 (Multiple Choice)
A patient presents for emergency appendectomy. The nurse discovers the informed consent
form is signed but lacks a witness signature. The patient is alert, oriented, and has not
received premedication. What is the nurse's priority action?
A) Accept the consent since the patient signed it voluntarily
B) Obtain a witness signature immediately before transporting to the OR
C) Have the surgeon obtain verbal consent and document it
D) Cancel the case until a new consent can be obtained
[CORRECT: B]
Rationale: The AORN Guideline for Patient Identification and Procedure Verification requires
informed consent forms to be properly witnessed. An unwitnessed signature creates a legal
vulnerability and does not meet institutional or regulatory standards. Since the patient is
competent and unmedicated, a witness can immediately countersign, validating the consent
without delaying emergency care.
Question 6 (SATA)
Which elements must be verified by the perioperative nurse when reviewing an informed
consent form prior to surgery? (Select all that apply.)
A) Patient's signature matches the identification band
B) Procedure description matches the scheduled operation
C) Risks, benefits, and alternatives have been explained
D) Surgeon's signature is present and dated
E) Witness signature is present
[CORRECT: A, B, C, D, E]
Rationale: Complete informed consent verification requires all five elements: correct patient
identity (A), accurate procedure description (B), documented discussion of
risks/benefits/alternatives (C), surgeon's signature with date (D), and witness attestation (E).
The AORN Guideline specifies that missing any element requires immediate correction before
proceeding.
Question 7 (Multiple Choice)
, During preoperative assessment of a 78-year-old patient scheduled for open reduction
internal fixation (ORIF) of the hip, which age-specific pulmonary finding requires the most
immediate intervention?
A) Baseline SpO2 of 92% on room air
B) Decreased chest wall compliance
C) Reduced functional residual capacity
D) Diminished cough reflex
[CORRECT: A]
Rationale: While all options represent normal age-related pulmonary changes, a baseline
SpO2 of 92% indicates active hypoxemia requiring immediate investigation and potential
postponement of elective surgery. The AORN Geriatric Care guideline requires preoperative
SpO2 ≥ 94% for major surgery. Decreased compliance, reduced FRC, and diminished cough
reflex are expected physiological changes in geriatric patients that require monitoring but do
not necessarily delay surgery.
Question 8 (Multiple Choice)
A 3-year-old is scheduled for umbilical hernia repair. Which age-specific physiological
consideration is most important for preventing intraoperative complications?
A) Increased blood volume relative to body weight
B) Higher metabolic rate and oxygen consumption
C) Larger functional residual capacity
D) Slower gastric emptying time
[CORRECT: B]
Rationale: Pediatric patients have a metabolic rate 2-3 times higher than adults and increased
oxygen consumption (6-8 mL/kg/min vs. 3-4 mL/kg/min in adults). This makes them
particularly vulnerable to hypoxemia during induction and maintenance. The AORN Pediatric
Care guideline requires preoxygenation, precise temperature management, and rapid
sequence induction protocols to compensate for this physiology.
Question 9 (SATA)
Which age-related physiological changes in geriatric patients increase the risk of perioperative
respiratory complications? (Select all that apply.)
Questions with Verified Answers | 2026/2027 Edition.
Question 1 (Multiple Choice)
A 68-year-old patient is scheduled for a total knee arthroplasty. Using the Perioperative
Nursing Data Set (PNDS), which nursing diagnosis takes priority based on the patient's age
and the nature of orthopedic surgery?
A) Risk for Delayed Surgical Recovery
B) Risk for Perioperative Positioning Injury
C) Risk for Infection
D) Ineffective Thermoregulation
[CORRECT: C]
Rationale: According to AORN Guidelines for Perioperative Practice and the PNDS
standardized language, "Risk for Infection" is a priority diagnosis for total joint arthroplasty
due to the catastrophic consequences of prosthetic joint infection. The 2026 guidelines
emphasize that implant-related infections require rigorous sterile technique and prophylactic
protocols. While positioning injury and thermoregulation are valid concerns, infection
prevention is the highest priority for implant surgery.
Question 2 (SATA)
Which of the following are officially recognized nursing diagnoses within the Perioperative
Nursing Data Set (PNDS)? (Select all that apply.)
A) Risk for Infection
B) Risk for Perioperative Positioning Injury
C) Ineffective Thermoregulation
D) Risk for Aspiration
E) Impaired Tissue Integrity
[CORRECT: A, B, C]
Rationale: The PNDS standardized language specifically includes "Risk for Infection," "Risk for
Perioperative Positioning Injury," and "Ineffective Thermoregulation" as core perioperative
nursing diagnoses. These diagnoses guide outcome identification and intervention selection
,across the perioperative continuum. While aspiration and tissue integrity are clinical
concerns, they are not among the primary PNDS diagnoses tested on the CNOR exam.
Question 3 (Multiple Choice)
A 4-year-old child is scheduled for tonsillectomy. Which PNDS nursing diagnosis is most critical
to address during the intraoperative phase?
A) Risk for Deficient Fluid Volume
B) Risk for Perioperative Hypothermia
C) Ineffective Thermoregulation
D) Anxiety
[CORRECT: C]
Rationale: "Ineffective Thermoregulation" is the critical PNDS diagnosis for pediatric patients
due to their disproportionate body surface area-to-mass ratio, limited subcutaneous fat, and
inability to shiver effectively. The AORN Guideline for Prevention of Unplanned Perioperative
Hypothermia requires active warming for pediatric patients, as hypothermia leads to
coagulopathy, delayed drug metabolism, and increased oxygen consumption.
Question 4 (Multiple Choice)
The perioperative nurse is verifying informed consent with a patient scheduled for
laparoscopic cholecystectomy. The patient has received 2 mg of midazolam IV five minutes
ago. What is the nurse's correct action?
A) Proceed with verification since the patient is still alert and oriented
B) Delay verification until the anxiolytic effects have completely worn off
C) Verify consent was properly witnessed and signed BEFORE the midazolam was
administered
D) Have the patient re-sign the consent form in the presence of the surgeon
[CORRECT: C]
Rationale: AORN standards and The Joint Commission require that informed consent be
verified and witnessed prior to administration of any anxiolytic or sedating medication. Once
midazolam is administered, the patient's judgment is pharmacologically impaired, invalidating
any subsequent consent verification. The nurse must confirm the original consent was
properly executed before premedication.
,Question 5 (Multiple Choice)
A patient presents for emergency appendectomy. The nurse discovers the informed consent
form is signed but lacks a witness signature. The patient is alert, oriented, and has not
received premedication. What is the nurse's priority action?
A) Accept the consent since the patient signed it voluntarily
B) Obtain a witness signature immediately before transporting to the OR
C) Have the surgeon obtain verbal consent and document it
D) Cancel the case until a new consent can be obtained
[CORRECT: B]
Rationale: The AORN Guideline for Patient Identification and Procedure Verification requires
informed consent forms to be properly witnessed. An unwitnessed signature creates a legal
vulnerability and does not meet institutional or regulatory standards. Since the patient is
competent and unmedicated, a witness can immediately countersign, validating the consent
without delaying emergency care.
Question 6 (SATA)
Which elements must be verified by the perioperative nurse when reviewing an informed
consent form prior to surgery? (Select all that apply.)
A) Patient's signature matches the identification band
B) Procedure description matches the scheduled operation
C) Risks, benefits, and alternatives have been explained
D) Surgeon's signature is present and dated
E) Witness signature is present
[CORRECT: A, B, C, D, E]
Rationale: Complete informed consent verification requires all five elements: correct patient
identity (A), accurate procedure description (B), documented discussion of
risks/benefits/alternatives (C), surgeon's signature with date (D), and witness attestation (E).
The AORN Guideline specifies that missing any element requires immediate correction before
proceeding.
Question 7 (Multiple Choice)
, During preoperative assessment of a 78-year-old patient scheduled for open reduction
internal fixation (ORIF) of the hip, which age-specific pulmonary finding requires the most
immediate intervention?
A) Baseline SpO2 of 92% on room air
B) Decreased chest wall compliance
C) Reduced functional residual capacity
D) Diminished cough reflex
[CORRECT: A]
Rationale: While all options represent normal age-related pulmonary changes, a baseline
SpO2 of 92% indicates active hypoxemia requiring immediate investigation and potential
postponement of elective surgery. The AORN Geriatric Care guideline requires preoperative
SpO2 ≥ 94% for major surgery. Decreased compliance, reduced FRC, and diminished cough
reflex are expected physiological changes in geriatric patients that require monitoring but do
not necessarily delay surgery.
Question 8 (Multiple Choice)
A 3-year-old is scheduled for umbilical hernia repair. Which age-specific physiological
consideration is most important for preventing intraoperative complications?
A) Increased blood volume relative to body weight
B) Higher metabolic rate and oxygen consumption
C) Larger functional residual capacity
D) Slower gastric emptying time
[CORRECT: B]
Rationale: Pediatric patients have a metabolic rate 2-3 times higher than adults and increased
oxygen consumption (6-8 mL/kg/min vs. 3-4 mL/kg/min in adults). This makes them
particularly vulnerable to hypoxemia during induction and maintenance. The AORN Pediatric
Care guideline requires preoxygenation, precise temperature management, and rapid
sequence induction protocols to compensate for this physiology.
Question 9 (SATA)
Which age-related physiological changes in geriatric patients increase the risk of perioperative
respiratory complications? (Select all that apply.)
