CNOR OPERATING ROOM NURSE EXAM 2026 —
COMPREHENSIVE TEST BANK | QUESTIONS AND
ANSWERS | 2026/2027 LATEST UPDATE
SECTION 1: PRE/POSTOPERATIVE PATIENT ASSESSMENT AND DIAGNOSIS
Questions 1–15
1. During a preoperative assessment, which finding should receive the greatest immediate
attention before elective surgery?
A) A new onset of chest pain with diaphoresis
B) Mild anxiety about anesthesia
C) A history of postoperative nausea
D) A request for family visitation
Correct Answer: A new onset of chest pain with diaphoresis
Rationale: New chest pain accompanied by diaphoresis may indicate acute myocardial
ischemia and requires prompt evaluation before elective surgery proceeds. Mild anxiety,
previous postoperative nausea, and visitation preferences are important but are not
immediately life-threatening. Perioperative assessment prioritizes potentially unstable
physiologic conditions and identifies findings that may require intervention or postponement.
2. When reviewing a surgical history, which information is most important for anticipating
a positioning-related complication?
A) Preferred postoperative meal
B) Previous peripheral nerve injury
C) Number of previous hospital admissions
D) Preferred language
Correct Answer: Previous peripheral nerve injury
Rationale: A previous peripheral nerve injury may indicate increased susceptibility to
positioning-related neurologic complications. This history should prompt careful assessment
and individualized positioning precautions. Dietary preferences, admission history, and
language preference remain relevant to comprehensive care but do not directly identify an
increased risk for perioperative nerve injury.
3. Which assessment finding most strongly suggests that a patient may be at increased risk
for pressure injury during prolonged surgery?
A) Normal skin temperature
B) Occasional postoperative nausea
,C) Limited mobility and poor nutritional status
D) Corrected visual impairment
Correct Answer: Limited mobility and poor nutritional status
Rationale: Limited mobility and inadequate nutrition are recognized contributors to impaired
tissue tolerance and pressure injury risk. Prolonged operative positioning can compound
these vulnerabilities. Normal skin temperature does not eliminate risk, while nausea and
visual impairment are not primary determinants of pressure-related tissue injury during
surgery.
4. Before proceeding with an elective procedure, which discrepancy requires immediate
resolution?
A) The patient prefers a different postoperative meal
B) The family has not arrived
C) The patient requests a later discharge time
D) The planned procedure differs from the documented informed consent
Correct Answer: The planned procedure differs from the documented informed consent
Rationale: A discrepancy between the planned procedure and the documented informed
consent creates a major patient-safety and legal concern. The discrepancy must be resolved
before proceeding. Meal preferences, family presence, and discharge preferences may affect
patient experience and planning, but they do not supersede verification of the authorized
procedure.
5. Which preoperative finding should prompt special consideration when electrosurgical
equipment is planned?
A) Implanted cardiac rhythm device
B) Seasonal allergies
C) Remote history of appendectomy
D) Mild postoperative constipation
Correct Answer: Implanted cardiac rhythm device
Rationale: Implanted cardiac devices such as pacemakers and implantable cardioverter-
defibrillators can require specific perioperative precautions when electrosurgery is used. The
team should assess the device, procedure, energy modality, and relevant institutional
precautions. The other findings may be documented but do not carry the same direct
implication for electrosurgical safety.
6. A patient reports taking an anticoagulant that was not listed during the initial
medication reconciliation. What is the most appropriate perioperative response?
,A) Ignore the information because the medication was omitted earlier
B) Document it only after surgery
C) Communicate the medication use promptly and clarify the management plan
D) Tell the patient to discontinue it independently
Correct Answer: Communicate the medication use promptly and clarify the management
plan
Rationale: Anticoagulant use can substantially affect surgical bleeding risk and requires
coordinated management. The perioperative team should promptly communicate the new
information and clarify the prescribed plan with the appropriate clinician. Patients should
not independently stop prescribed medications, and clinically significant medication
information should not be deferred until after surgery.
7. Which assessment most directly helps identify a risk for postoperative respiratory
compromise?
A) Preferred sleeping position
B) History of obstructive sleep apnea
C) Favorite type of music
D) Previous dietary intolerance
Correct Answer: History of obstructive sleep apnea
Rationale: Obstructive sleep apnea is associated with increased perioperative respiratory
risk, particularly after anesthesia and opioid administration. Identifying the condition allows
the team to plan monitoring and appropriate respiratory support. The other findings may
contribute to individualized care but do not directly indicate increased postoperative
ventilatory vulnerability.
8. What is the principal purpose of verifying allergies during the preoperative assessment?
A) To determine the patient's preferred pharmacy
B) To predict the length of hospitalization
C) To identify potential exposures that could cause an adverse reaction
D) To determine whether postoperative imaging is required
Correct Answer: To identify potential exposures that could cause an adverse reaction
Rationale: Allergy verification helps the perioperative team identify medications, antiseptics,
latex, adhesives, or other substances that may cause harmful reactions. Accurate
clarification should include the substance and reaction when possible. Allergy information
does not primarily determine hospitalization length, pharmacy preference, or postoperative
imaging requirements.
9. Which finding is most important when evaluating whether a patient may require
additional communication support?
, A) The patient reports difficulty understanding the language used by the surgical team
B) The patient prefers morning appointments
C) The patient has a favorite television program
D) The patient requests an extra blanket
Correct Answer: The patient reports difficulty understanding the language used by the
surgical team
Rationale: Effective communication is essential for informed decision-making, safety, and
patient understanding. When language barriers exist, appropriate communication resources
should be used rather than relying on assumptions or informal interpretation. Scheduling
preferences and comfort requests should be addressed, but they do not create the same
safety implications.
10. During postoperative assessment, which finding warrants the most urgent evaluation?
A) Mild incisional discomfort
B) Moderate thirst
C) New difficulty maintaining oxygen saturation
D) Request for repositioning
Correct Answer: New difficulty maintaining oxygen saturation
Rationale: A new decline in oxygenation may signal respiratory compromise and requires
prompt assessment and intervention. Mild pain, thirst, and a need for repositioning are
common postoperative concerns but generally do not carry the same immediate threat to
physiologic stability. Perioperative nurses prioritize airway, breathing, circulation, and
significant changes from baseline.
11. Which factor is particularly relevant when assessing the risk of venous
thromboembolism?
A) Favorite postoperative beverage
B) Prolonged immobility
C) Preferred surgical music
D) Previous uncomplicated dental procedure
Correct Answer: Prolonged immobility
Rationale: Prolonged immobility contributes to venous stasis and increases venous
thromboembolism risk. The perioperative assessment should integrate mobility, procedure
type, patient history, and other recognized risk factors. Personal preferences and unrelated
uncomplicated procedures do not independently represent major perioperative
thromboembolic risk factors.
12. What is the best reason for comparing the preoperative baseline assessment with
postoperative findings?
COMPREHENSIVE TEST BANK | QUESTIONS AND
ANSWERS | 2026/2027 LATEST UPDATE
SECTION 1: PRE/POSTOPERATIVE PATIENT ASSESSMENT AND DIAGNOSIS
Questions 1–15
1. During a preoperative assessment, which finding should receive the greatest immediate
attention before elective surgery?
A) A new onset of chest pain with diaphoresis
B) Mild anxiety about anesthesia
C) A history of postoperative nausea
D) A request for family visitation
Correct Answer: A new onset of chest pain with diaphoresis
Rationale: New chest pain accompanied by diaphoresis may indicate acute myocardial
ischemia and requires prompt evaluation before elective surgery proceeds. Mild anxiety,
previous postoperative nausea, and visitation preferences are important but are not
immediately life-threatening. Perioperative assessment prioritizes potentially unstable
physiologic conditions and identifies findings that may require intervention or postponement.
2. When reviewing a surgical history, which information is most important for anticipating
a positioning-related complication?
A) Preferred postoperative meal
B) Previous peripheral nerve injury
C) Number of previous hospital admissions
D) Preferred language
Correct Answer: Previous peripheral nerve injury
Rationale: A previous peripheral nerve injury may indicate increased susceptibility to
positioning-related neurologic complications. This history should prompt careful assessment
and individualized positioning precautions. Dietary preferences, admission history, and
language preference remain relevant to comprehensive care but do not directly identify an
increased risk for perioperative nerve injury.
3. Which assessment finding most strongly suggests that a patient may be at increased risk
for pressure injury during prolonged surgery?
A) Normal skin temperature
B) Occasional postoperative nausea
,C) Limited mobility and poor nutritional status
D) Corrected visual impairment
Correct Answer: Limited mobility and poor nutritional status
Rationale: Limited mobility and inadequate nutrition are recognized contributors to impaired
tissue tolerance and pressure injury risk. Prolonged operative positioning can compound
these vulnerabilities. Normal skin temperature does not eliminate risk, while nausea and
visual impairment are not primary determinants of pressure-related tissue injury during
surgery.
4. Before proceeding with an elective procedure, which discrepancy requires immediate
resolution?
A) The patient prefers a different postoperative meal
B) The family has not arrived
C) The patient requests a later discharge time
D) The planned procedure differs from the documented informed consent
Correct Answer: The planned procedure differs from the documented informed consent
Rationale: A discrepancy between the planned procedure and the documented informed
consent creates a major patient-safety and legal concern. The discrepancy must be resolved
before proceeding. Meal preferences, family presence, and discharge preferences may affect
patient experience and planning, but they do not supersede verification of the authorized
procedure.
5. Which preoperative finding should prompt special consideration when electrosurgical
equipment is planned?
A) Implanted cardiac rhythm device
B) Seasonal allergies
C) Remote history of appendectomy
D) Mild postoperative constipation
Correct Answer: Implanted cardiac rhythm device
Rationale: Implanted cardiac devices such as pacemakers and implantable cardioverter-
defibrillators can require specific perioperative precautions when electrosurgery is used. The
team should assess the device, procedure, energy modality, and relevant institutional
precautions. The other findings may be documented but do not carry the same direct
implication for electrosurgical safety.
6. A patient reports taking an anticoagulant that was not listed during the initial
medication reconciliation. What is the most appropriate perioperative response?
,A) Ignore the information because the medication was omitted earlier
B) Document it only after surgery
C) Communicate the medication use promptly and clarify the management plan
D) Tell the patient to discontinue it independently
Correct Answer: Communicate the medication use promptly and clarify the management
plan
Rationale: Anticoagulant use can substantially affect surgical bleeding risk and requires
coordinated management. The perioperative team should promptly communicate the new
information and clarify the prescribed plan with the appropriate clinician. Patients should
not independently stop prescribed medications, and clinically significant medication
information should not be deferred until after surgery.
7. Which assessment most directly helps identify a risk for postoperative respiratory
compromise?
A) Preferred sleeping position
B) History of obstructive sleep apnea
C) Favorite type of music
D) Previous dietary intolerance
Correct Answer: History of obstructive sleep apnea
Rationale: Obstructive sleep apnea is associated with increased perioperative respiratory
risk, particularly after anesthesia and opioid administration. Identifying the condition allows
the team to plan monitoring and appropriate respiratory support. The other findings may
contribute to individualized care but do not directly indicate increased postoperative
ventilatory vulnerability.
8. What is the principal purpose of verifying allergies during the preoperative assessment?
A) To determine the patient's preferred pharmacy
B) To predict the length of hospitalization
C) To identify potential exposures that could cause an adverse reaction
D) To determine whether postoperative imaging is required
Correct Answer: To identify potential exposures that could cause an adverse reaction
Rationale: Allergy verification helps the perioperative team identify medications, antiseptics,
latex, adhesives, or other substances that may cause harmful reactions. Accurate
clarification should include the substance and reaction when possible. Allergy information
does not primarily determine hospitalization length, pharmacy preference, or postoperative
imaging requirements.
9. Which finding is most important when evaluating whether a patient may require
additional communication support?
, A) The patient reports difficulty understanding the language used by the surgical team
B) The patient prefers morning appointments
C) The patient has a favorite television program
D) The patient requests an extra blanket
Correct Answer: The patient reports difficulty understanding the language used by the
surgical team
Rationale: Effective communication is essential for informed decision-making, safety, and
patient understanding. When language barriers exist, appropriate communication resources
should be used rather than relying on assumptions or informal interpretation. Scheduling
preferences and comfort requests should be addressed, but they do not create the same
safety implications.
10. During postoperative assessment, which finding warrants the most urgent evaluation?
A) Mild incisional discomfort
B) Moderate thirst
C) New difficulty maintaining oxygen saturation
D) Request for repositioning
Correct Answer: New difficulty maintaining oxygen saturation
Rationale: A new decline in oxygenation may signal respiratory compromise and requires
prompt assessment and intervention. Mild pain, thirst, and a need for repositioning are
common postoperative concerns but generally do not carry the same immediate threat to
physiologic stability. Perioperative nurses prioritize airway, breathing, circulation, and
significant changes from baseline.
11. Which factor is particularly relevant when assessing the risk of venous
thromboembolism?
A) Favorite postoperative beverage
B) Prolonged immobility
C) Preferred surgical music
D) Previous uncomplicated dental procedure
Correct Answer: Prolonged immobility
Rationale: Prolonged immobility contributes to venous stasis and increases venous
thromboembolism risk. The perioperative assessment should integrate mobility, procedure
type, patient history, and other recognized risk factors. Personal preferences and unrelated
uncomplicated procedures do not independently represent major perioperative
thromboembolic risk factors.
12. What is the best reason for comparing the preoperative baseline assessment with
postoperative findings?
