Page 1 of 172
Cnor (Certified Nurse Operating
Room) Exam Newest Updated
Questions With Correct Answers
(Verified
Answers), 100% Guaranteed Pass
1. A 72-year-old patient with history of heart
failure and CKD is scheduled for ventral hernia
repair. Which preoperative lab value is most
critical to report to the
surgeon?
A. Hgb 11.2 g/dL
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B. K+ 5.9 mEq/L
C.Creatinine 1.3 mg/dL
D.INR 1.1
Answer: B
Rationale: K+ 5.9 mEq/L indicates hyperkalemia,
which increases risk of cardiac arrhythmias under
anesthesia. CKD patients are prone. Normal range
3.5–5.0.
2. During preoperative verification, the patient
says, “I had a sip of water 2 hours ago.” What is
the best action?
A. Cancel the case
B. Proceed only if emergency
C.Delay case 6 hours
D.Check anesthesia protocol — proceed if clear liquids
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Answer: D
Rationale: ASA guidelines allow clear liquids up to 2
hours before anesthesia. No delay needed.
3. Which finding on preoperative assessment
requires further investigation for VTE risk?
A. Active smoking
B. BMI 31
C.Long-haul flight 10 days ago
D.All of the above
Answer: D
Rationale: Smoking, obesity, and recent prolonged
immobilization are all VTE risk factors.
4. A patient with a history of malignant
hyperthermia (MH) is scheduled for general
anesthesia. Which agent must be avoided?
A. Propofol
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B. Succinylcholine
C.Ketamine
D.Fentanyl
Answer: B
Rationale: Succinylcholine and volatile anesthetics
(e.g., sevoflurane) trigger MH. Propofol, ketamine,
and opioids are safe.
5. During preoperative assessment, the patient
reports an allergy to “sulfa.” Which medication
should be avoided?
A. Cefazolin
B. Clindamycin
C.Vancomycin
D.Gentamicin
Answer: A
Cnor (Certified Nurse Operating
Room) Exam Newest Updated
Questions With Correct Answers
(Verified
Answers), 100% Guaranteed Pass
1. A 72-year-old patient with history of heart
failure and CKD is scheduled for ventral hernia
repair. Which preoperative lab value is most
critical to report to the
surgeon?
A. Hgb 11.2 g/dL
,Page 2 of 172
B. K+ 5.9 mEq/L
C.Creatinine 1.3 mg/dL
D.INR 1.1
Answer: B
Rationale: K+ 5.9 mEq/L indicates hyperkalemia,
which increases risk of cardiac arrhythmias under
anesthesia. CKD patients are prone. Normal range
3.5–5.0.
2. During preoperative verification, the patient
says, “I had a sip of water 2 hours ago.” What is
the best action?
A. Cancel the case
B. Proceed only if emergency
C.Delay case 6 hours
D.Check anesthesia protocol — proceed if clear liquids
,Page 3 of 172
Answer: D
Rationale: ASA guidelines allow clear liquids up to 2
hours before anesthesia. No delay needed.
3. Which finding on preoperative assessment
requires further investigation for VTE risk?
A. Active smoking
B. BMI 31
C.Long-haul flight 10 days ago
D.All of the above
Answer: D
Rationale: Smoking, obesity, and recent prolonged
immobilization are all VTE risk factors.
4. A patient with a history of malignant
hyperthermia (MH) is scheduled for general
anesthesia. Which agent must be avoided?
A. Propofol
, Page 4 of 172
B. Succinylcholine
C.Ketamine
D.Fentanyl
Answer: B
Rationale: Succinylcholine and volatile anesthetics
(e.g., sevoflurane) trigger MH. Propofol, ketamine,
and opioids are safe.
5. During preoperative assessment, the patient
reports an allergy to “sulfa.” Which medication
should be avoided?
A. Cefazolin
B. Clindamycin
C.Vancomycin
D.Gentamicin
Answer: A
