Selected questions Flashcards
What nerve can you stimulate in the trigemino-trigeminal reflex testing?
Mental nerve or
Infraorbital nerve
In RNS, at <5Hz, what decrement percentage is considered to be physiological?
< 5%
In RNS, at 10Hz, what pattern is expected with botulism?
Increment
What represents the jitter in SF-EMG?
The safety factor of NM transmission
Which of the following nerve has the fastest conduction in dog?
* Peroneal nerve
* Tibial nerve
* Ulnar nerve
* Radial nerve
Peroneal nerve
At what age MNCV adult values are approximately reached in dogs and cats, respectively?
- 3 weeks & 2 weeks
- 12 weeks & 1 month
- 24 weeks & 2 months
- 32 weeks & 3 months
32 weeks & 3 months
In MNCV, what disease process is typically characterized by an increase in latency with normal amplitude?
- Axonopathy
- Axonotmesis
- Demyelination
- Neurapraxia
Demyelination
In the blink reflex testing, what are the changes expected with a lesion of the pontine sensory nucleus?
*
Absent R1 & present R2, Rc, R3
What is the clinical use of the R1/D ratio in the blink reflex testing and direct facial stimulation?
Differentiate between a proximal and distal lesion of the facial nerve
*D = similar to M; R1 = similar to F
Longer D latency = smaller R1/D ratio = more distal Lx
Longer R1 latency = larger R1/D ratio = more proximal Lx
Which tract carries proprioceptive information from the pelvic limb
Spinomedullary tract
What is the recommended frequency of stimulation for SSEP?
< 5 Hz
It is an example of a potential GOOD clinical use SSEP
A) To determine severity of a spinal cord lesion
B) To monitor for improvement
C) To determine extension of the lesion
D) To give a better prognosis of the injury
C
In the ERG, wave B is representative of mostly:
Bipolar cells
Which statements are true about ERG and VEP:
A) The earliest age to perform an ERG is at 5 months old and 4 weeks old for a VEP.
B) An ERG can help to diagnose optic neuritis whereas VEP can help to diagnose sudden acquired retinal degeneration (SARD).
C) ERG test measures the electrical response of the light-sensitive cells in the eyes and VEP measures the time it takes for a visual stimulus to travel from the eye to the occipital cortex in the brain.
D) ERG and VEP can both be performed under general anesthesia.
C
