ABRET CNIM FINAL SCRIPT 2026
COMPLETE QUESTIONS AND ANSWERS
PASSED A+
◉ Which of the following drugs are not halogenated anesthetics?
Select one:
a. Isoflurane
b. Desflurane
c. Sevoflurane
d. Nitrous Oxide (N2O).
Answer: d. Nitrous Oxide (N2O)
◉ Which of the following is not a major mechanism of action of the
usual anesthetic agents that effect IONM?
Select one:
a. inhibition of nerve conduction velocity
b. inhibition of synaptic function
c. blocking of reflex activity in the spinal grey matter
d. blocking of sensory information at the thalamus.
Answer: a. inhibition of nerve conduction velocity
,◉ Inhalational agents are characterized by the MAC and their
solubility in tissues and blood. Which is a characteristic of agents
with low solubility?
Select one:
a. the anesthetic effect takes a long time to work
b. the anesthetic effect can be changed faster than agents which are
more soluble
c. Their MAC is higher than agents which are less soluble
d. their MAC is lower than agents which are less soluble.
Answer: A. The anesthetic effect can be changed faster than agents
which are more soluble
◉ The mental protruberance is located _______..
Answer: on the chin
◉ CN 6 is monitored in which site?.
Answer: Lateral Rectus
◉ CN 4 is monitored in which site?.
Answer: Superior Oblique
◉ CN 3 is monitored in which site?.
Answer: Superior Rectus
,◉ What artery primarily perfuses the lower spinal cord?
a. Adamkiewicz
b. Vena cava
c. Middle cerebral artery
d. Carotid.
Answer: a. Adamkiewicz
◉ The anterior vasculature of the spine is at greatest risk during
which of the following?
Select one:
a. posterior surgery on the thoracic spine
b. anterior surgery in the thoracic spine
c. anterior surgery on the lumbar spine
d. anterior surgery on the cervical spine.
Answer: b. anterior surgery in the thoracic spine
◉ A drop in the temperature of the patient's legs can cause:
Select one:
a. An increase in the conduction velocity of the tibial nerve
b. An increase in the amplitude of the L3S response
c. A decrease in the amplitude of SSEP waveforms
, d. A prolongation of SSEP peak latencies.
Answer: d. A prolongation of SSEP peak latencies
◉ Name one advantage of direct CNVIII recordings?
Select one:
a. Easy placement of recording electrode
b. No advantage
c. Diminishes need for averaging.
Answer: c. Diminishes need for averaging
◉ Anesthesia is started and the patient intubated. You set up
TCeMEPs but see no response until 45-50 minutes after induction.
Select one:
a. None
b. Mivacurium
c. Pancuronium
d. Succinylcholine
e. Vecuronium.
Answer: e. Vecuronium
◉ A nerve cell membrane can depolarize when.
COMPLETE QUESTIONS AND ANSWERS
PASSED A+
◉ Which of the following drugs are not halogenated anesthetics?
Select one:
a. Isoflurane
b. Desflurane
c. Sevoflurane
d. Nitrous Oxide (N2O).
Answer: d. Nitrous Oxide (N2O)
◉ Which of the following is not a major mechanism of action of the
usual anesthetic agents that effect IONM?
Select one:
a. inhibition of nerve conduction velocity
b. inhibition of synaptic function
c. blocking of reflex activity in the spinal grey matter
d. blocking of sensory information at the thalamus.
Answer: a. inhibition of nerve conduction velocity
,◉ Inhalational agents are characterized by the MAC and their
solubility in tissues and blood. Which is a characteristic of agents
with low solubility?
Select one:
a. the anesthetic effect takes a long time to work
b. the anesthetic effect can be changed faster than agents which are
more soluble
c. Their MAC is higher than agents which are less soluble
d. their MAC is lower than agents which are less soluble.
Answer: A. The anesthetic effect can be changed faster than agents
which are more soluble
◉ The mental protruberance is located _______..
Answer: on the chin
◉ CN 6 is monitored in which site?.
Answer: Lateral Rectus
◉ CN 4 is monitored in which site?.
Answer: Superior Oblique
◉ CN 3 is monitored in which site?.
Answer: Superior Rectus
,◉ What artery primarily perfuses the lower spinal cord?
a. Adamkiewicz
b. Vena cava
c. Middle cerebral artery
d. Carotid.
Answer: a. Adamkiewicz
◉ The anterior vasculature of the spine is at greatest risk during
which of the following?
Select one:
a. posterior surgery on the thoracic spine
b. anterior surgery in the thoracic spine
c. anterior surgery on the lumbar spine
d. anterior surgery on the cervical spine.
Answer: b. anterior surgery in the thoracic spine
◉ A drop in the temperature of the patient's legs can cause:
Select one:
a. An increase in the conduction velocity of the tibial nerve
b. An increase in the amplitude of the L3S response
c. A decrease in the amplitude of SSEP waveforms
, d. A prolongation of SSEP peak latencies.
Answer: d. A prolongation of SSEP peak latencies
◉ Name one advantage of direct CNVIII recordings?
Select one:
a. Easy placement of recording electrode
b. No advantage
c. Diminishes need for averaging.
Answer: c. Diminishes need for averaging
◉ Anesthesia is started and the patient intubated. You set up
TCeMEPs but see no response until 45-50 minutes after induction.
Select one:
a. None
b. Mivacurium
c. Pancuronium
d. Succinylcholine
e. Vecuronium.
Answer: e. Vecuronium
◉ A nerve cell membrane can depolarize when.
