BUS 391 FINAL CERTIFICATION
SCRIPT 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◍ First sign of malignant hyperthermia.
Answer: Increased end tidal CO2 despite increasing minute ventilation
◍ ASA classifications.
Answer: 1- healthy2- mild to mod 3- severe; limits activity4- severe;
constant threat to life5- not expected to survive without OR6- clinically dead
◍ 5 sensory structures per ear.
Answer: - 2 otolithic organs (utricle and saccule)- 3 semicircular canals
◍ ASA classifications mortality risk.
Answer: 1- 0%2- 1%3- 5%4- 20%5- 50%
◍ Excitatory/inhibitory pairs.
Answer: - Right Horizontal Canal & Left Horizontal Canal- Right Anterior
Canal and the Left Posterior Canal (RALP)- Right Posterior Canal and the
Left Anterior Canal (LARP)
◍ Semicircular canals acceleration sensation.
Answer: - angular accel- rotating head from side to side
◍ MET # able to walk on ground level 3km or do house chores.
Answer: MET 2-3
◍ Otolith Organs acceleration sensation.
Answer: - linear accel- change in static head position
◍ Hair cell resting discharge steps.
Answer: 1. Mechanoelectrical transduction 2. Basolateral current 3. Inward
calcium currents 4. Neurotransmitter release 5. postsynaptic mechanisms 6.
, Spike ecoding 7. Efferent feedback
◍ MET # climbing 2 flights of stairs, running short distances.
Answer: MET 5
◍ Mallampati score 1 (soft palate and uvula).
Answer: Complete visualization of uvula and soft palate
◍ Efferent System's Hypothesized Role.
Answer: - •May act as a filter, maximizing effects of high frequency bursts
of activity in central efferent neurons while minimizing tonic discharge
rates- Rapid modification of afferent discharge
◍ Mallampati score 2 (soft palate and uvula).
Answer: Complete visualiztion of uvulapartially obstructed soft palate
◍ Intrinsic connections of vestibular nuclei.
Answer: Connections of VN subdivisions and no midline crossing
◍ Mallampati score 3(soft palate and uvula).
Answer: Only see base of uvula partially obstructed soft palate
◍ Commisural onnections of vestibular nuclei.
Answer: crosses the midline
◍ Mallampati score 4 (soft palate and uvula).
Answer: entirely obstructed uvula and soft palate
◍ Medial Vestibular nuclie.
Answer: - largest - vestibulo-ocular rostral - vestibulo-spinal caudal
◍ Lateral vestibular Nuclei.
Answer: - Incoming projections from the vestibular nerve- Vestibulo-spinal
tract- gait and balance
◍ Superior Vestibular Nucleus.
Answer: - Commissural fibers connection through the midline of the
structure- Vestibulo-ocular projections
◍ Inhaled anesthetic with quickest on/off action.
SCRIPT 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◍ First sign of malignant hyperthermia.
Answer: Increased end tidal CO2 despite increasing minute ventilation
◍ ASA classifications.
Answer: 1- healthy2- mild to mod 3- severe; limits activity4- severe;
constant threat to life5- not expected to survive without OR6- clinically dead
◍ 5 sensory structures per ear.
Answer: - 2 otolithic organs (utricle and saccule)- 3 semicircular canals
◍ ASA classifications mortality risk.
Answer: 1- 0%2- 1%3- 5%4- 20%5- 50%
◍ Excitatory/inhibitory pairs.
Answer: - Right Horizontal Canal & Left Horizontal Canal- Right Anterior
Canal and the Left Posterior Canal (RALP)- Right Posterior Canal and the
Left Anterior Canal (LARP)
◍ Semicircular canals acceleration sensation.
Answer: - angular accel- rotating head from side to side
◍ MET # able to walk on ground level 3km or do house chores.
Answer: MET 2-3
◍ Otolith Organs acceleration sensation.
Answer: - linear accel- change in static head position
◍ Hair cell resting discharge steps.
Answer: 1. Mechanoelectrical transduction 2. Basolateral current 3. Inward
calcium currents 4. Neurotransmitter release 5. postsynaptic mechanisms 6.
, Spike ecoding 7. Efferent feedback
◍ MET # climbing 2 flights of stairs, running short distances.
Answer: MET 5
◍ Mallampati score 1 (soft palate and uvula).
Answer: Complete visualization of uvula and soft palate
◍ Efferent System's Hypothesized Role.
Answer: - •May act as a filter, maximizing effects of high frequency bursts
of activity in central efferent neurons while minimizing tonic discharge
rates- Rapid modification of afferent discharge
◍ Mallampati score 2 (soft palate and uvula).
Answer: Complete visualiztion of uvulapartially obstructed soft palate
◍ Intrinsic connections of vestibular nuclei.
Answer: Connections of VN subdivisions and no midline crossing
◍ Mallampati score 3(soft palate and uvula).
Answer: Only see base of uvula partially obstructed soft palate
◍ Commisural onnections of vestibular nuclei.
Answer: crosses the midline
◍ Mallampati score 4 (soft palate and uvula).
Answer: entirely obstructed uvula and soft palate
◍ Medial Vestibular nuclie.
Answer: - largest - vestibulo-ocular rostral - vestibulo-spinal caudal
◍ Lateral vestibular Nuclei.
Answer: - Incoming projections from the vestibular nerve- Vestibulo-spinal
tract- gait and balance
◍ Superior Vestibular Nucleus.
Answer: - Commissural fibers connection through the midline of the
structure- Vestibulo-ocular projections
◍ Inhaled anesthetic with quickest on/off action.
