NCS Peripheral Nerve/Spinal Nerve Flashcards
which of the following is the most mild nerve injury
a. neurapraxia
b. axonotmesis
c. neurotmesis
a. neurapraxia
what is the rate of axonal regeneration
1mm per day (1in per month)
what structures are involved with first degree peripheral nerve injury aka neurapraxia
a. myelin
b. myelin and axon
c. myelin, axon, endoneurium
d. myelin, axon, endoneurium, perineurium
e. myeline, axon, endoneurium, perineurium, epineurium
a. myelin
what structures are involved with second degree peripheral nerve injury aka axontomesis
a. myelin
b. myelin and axon
c. myelin, axon, endoneurium
d. myelin, axon, endoneurium, perineurium
e. myeline, axon, endoneurium, perineurium, epineurium
b. myeline and axon
what structures are involved with third degree peripheral nerve injury aka axonotmesis
a. myelin
b. myelin and axon
c. myelin, axon, endoneurium
d. myelin, axon, endoneurium, perineurium
e. myeline, axon, endoneurium, perineurium, epineurium
c. myelin, axon, endoneurium
what structures are involved with fourth degree peripheral nerve injury aka neurotmesis
a. myelin
b. myelin and axon
c. myelin, axon, endoneurium
d. myelin, axon, endoneurium, perineurium
e. myelin, axon, endoneurium, perineurium, epineurium
d. myelin, axon, endoneurium, perineurium
what structures are involved with fifth degree peripheral nerve injury aka neurotmesis
a. myelin
b. myelin and axon
c. myelin, axon, endoneurium
d. myelin, axon, endoneurium, perineurium
e. myelin, axon, endoneurium, perineurium, epineurium
e. myelin, axon, endoneurium, perineurium, epineurium
your patient presents following peripheral nerve injury. their symptoms resolve in 10 days. this likely means they had what type of nerve injury
a. neurapraxia
b. axonotmesis
c. neurotmesis
a. neurapraxia
your patient presents following peripheral nerve injury. their symptoms resolve in 1 month. this likely means they had what type of nerve injury
a. neurapraxia
b. axonotmesis
c. neurotmesis
b. axonotmesis
your patient presents following peripheral nerve injury. their script says neurotmesis. in terms of prognosis, you know they
a. will recover in days to weeks
b. will recover in weeks to months
c. will need surgery for recovery
c. will need surgery for recovery
your patient presents for wrist weakness without sensory loss following moving furniture and letting the furniture rest on her forearms. she has 3/5 strength at IE and at d/c 6 weeks later she has 5/5 strength. what type of nerve injury is this
a. neurapraxia
b. axonotmesis
c. neurotmesis
a. neurapraxia
while this recover seems longer than days to weeks, she demonstrates full recovery where axonotmesis may have residual impairments
proprioception and vibration sense as well as motor nerves and muscle spindle nerves are what type of nerve
a. large myelinated
b. small myelinated
c. small unmyelinated
a. large myelinated
pain/temperature, pin prick sensation are what type of nerve
a. large myelinated
b. small myelinated
c. small unmyelinated
c. small unmyelinated
autonomic and non proprioceptive sensation (LT) are what type of nerve
a. large myelinated
b. small myelinated
c. small unmyelinated
b. small myelinated
which 2 cranial nerves are considered an extension of the CNS rather than peripheral nerves
a. olfactory and optic
b. trochlear and abducens
c. glossopharyngeal and vagus
d. vagus and accessory
a. olfactory and optic
your patient presents for wrist weakness, sensory loss, and now onset of atrophy. she has 2+/5 strength at IE and at d/c 8 weeks later she has 3+/5 strength. what type of nerve injury is this
a. neurapraxia
b. axonotmesis
c. neurotmesis
b. axonotmesis
as motor and sensory deficits, atrophy demonstrating failure of conduction, and there was partial recovery not full
patient presents for balance training with reduced pin prick accuracy and reduced thermal sensation in distal LE. their reflexes and strength is normal. they likely have neuropathy of what type of fiber
a. large fiber
b. small fiber myelinated
c. small fiber unmyelinated
b. small fiber myelinated
true or false: The neural pathways that conduct information from light touch receptors and proprioceptors are the same neural pathways that conduct the stimulus applied with the 5.07/10g monofilament.
true
true or false: TENS is helpful for pain relief in peripheral neuropathy
true
your patient is considering using TENS for painful peripheral neuropathic pain. what should their HEP be?
30min a day for 4 weeks
what should the HEP exercise prescription for aerobic training for peripheral neuropathy management
10-20min 60-85% HRmax at least 3 times a week
true or false: it will take several years of uncontrolled hyperglycemia for persons with T1 DM vs only a few years in T2
true
patient presents for balance training with impaired vibration sense in distal LE, impaired reflexes, and muscle wasting
they likely have neuropathy of what type of fiber
a. large fiber
b. small fiber myelinated
c. small fiber unmyelinated
a. large fiber
true or false: there is evidence to support that aerobic exercise improves NCV and vibratory sense
true
