NBCRNA EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK| COMPLETE 850 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
GRADED A+| NBCRNA REVIEW 2025 (MOST RECENT!!)
1. A 75 kg patient with morbid obesity (BMI 42) undergoes
general anesthesia. After RSI with succinylcholine, you cannot
ventilate or intubate. The next best step is:
A) Repeat succinylcholine 1.5 mg/kg
B) Perform a surgical cricothyrotomy
C) Insert a supraglottic airway (SGA)
D) Attempt blind nasal intubation
Answer: C – Insert a supraglottic airway (SGA)
Rationale: In a cannot-ventilate-cannot-intubate (CVCI) scenario,
current difficult airway algorithms (ASA, 2022) prioritize placing
an SGA as a rescue device before proceeding to surgical
1
,airway. Obesity increases risk, but SGA often restores
ventilation.
2. Which drug is most likely to cause masseter muscle rigidity
in children after rapid administration of succinylcholine?
A) Rocuronium
B) Vecuronium
C) Succinylcholine
D) Cisatracurium
Answer: C – Succinylcholine
Rationale: Succinylcholine can cause masseter muscle rigidity,
especially in children, sometimes mimicking malignant
hyperthermia. It is dose- and rate-dependent.
2
,3. During one-lung ventilation, SpO₂ drops to 85%. The
correct initial maneuver is:
A) Increase FiO₂ to 1.0 on both lungs
B) Apply CPAP 5 cm H₂O to non-dependent lung
C) Clamp the pulmonary artery of the non-dependent lung
D) Immediately resume two-lung ventilation
Answer: D – Immediately resume two-lung ventilation
Rationale: First step in hypoxemia during OLV is to return to
two-lung ventilation to restore oxygenation.
4. A patient undergoing rigid bronchoscopy develops
bradycardia, hypotension, and subcutaneous emphysema.
Most likely cause:
A) Tension pneumothorax
B) Vagal reflex
3
, C) Air embolism
D) Laryngospasm
Answer: A – Tension pneumothorax
Rationale: Subcutaneous emphysema during rigid bronchoscopy
suggests barotrauma. Tension pneumothorax presents with
hypotension, bradycardia (late), requiring immediate needle
decompression.
5. Which inhalational agent is most associated with carbon
monoxide formation in CO₂ absorbent when desiccated?
A) Isoflurane
B) Sevoflurane
C) Desflurane
D) Halothane
4
BANK| COMPLETE 850 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
GRADED A+| NBCRNA REVIEW 2025 (MOST RECENT!!)
1. A 75 kg patient with morbid obesity (BMI 42) undergoes
general anesthesia. After RSI with succinylcholine, you cannot
ventilate or intubate. The next best step is:
A) Repeat succinylcholine 1.5 mg/kg
B) Perform a surgical cricothyrotomy
C) Insert a supraglottic airway (SGA)
D) Attempt blind nasal intubation
Answer: C – Insert a supraglottic airway (SGA)
Rationale: In a cannot-ventilate-cannot-intubate (CVCI) scenario,
current difficult airway algorithms (ASA, 2022) prioritize placing
an SGA as a rescue device before proceeding to surgical
1
,airway. Obesity increases risk, but SGA often restores
ventilation.
2. Which drug is most likely to cause masseter muscle rigidity
in children after rapid administration of succinylcholine?
A) Rocuronium
B) Vecuronium
C) Succinylcholine
D) Cisatracurium
Answer: C – Succinylcholine
Rationale: Succinylcholine can cause masseter muscle rigidity,
especially in children, sometimes mimicking malignant
hyperthermia. It is dose- and rate-dependent.
2
,3. During one-lung ventilation, SpO₂ drops to 85%. The
correct initial maneuver is:
A) Increase FiO₂ to 1.0 on both lungs
B) Apply CPAP 5 cm H₂O to non-dependent lung
C) Clamp the pulmonary artery of the non-dependent lung
D) Immediately resume two-lung ventilation
Answer: D – Immediately resume two-lung ventilation
Rationale: First step in hypoxemia during OLV is to return to
two-lung ventilation to restore oxygenation.
4. A patient undergoing rigid bronchoscopy develops
bradycardia, hypotension, and subcutaneous emphysema.
Most likely cause:
A) Tension pneumothorax
B) Vagal reflex
3
, C) Air embolism
D) Laryngospasm
Answer: A – Tension pneumothorax
Rationale: Subcutaneous emphysema during rigid bronchoscopy
suggests barotrauma. Tension pneumothorax presents with
hypotension, bradycardia (late), requiring immediate needle
decompression.
5. Which inhalational agent is most associated with carbon
monoxide formation in CO₂ absorbent when desiccated?
A) Isoflurane
B) Sevoflurane
C) Desflurane
D) Halothane
4
