Pattern Recognition in Neurology Flashcards
Symptoms appear where first in length dependent PN?
legs
Name the 4 different areas of the neurological system?
CNS, PNS, NMJ, muscle
MS is a demyelinating neuropathy T or F?
F, it is caused by demyelination in the BRAIN not in a nerve
Describe focal weakness
follows a distribution eg in a peripheral nerve or root, affects 1 side of the body, pyramidal distribution
Describe non-focal weakness
generalised, predominantly proximal or distal, can include bulbar motor problems
sphincter function is preserved in what MN dysfunction
LMN
sensory loss is in what distribution in UMN dysfunction?
central
Sensory loss is in what distribution in LMN dysfunction?
None, glove and stocking, peripheral nerve or root distribution
NMJ problems present with what presentation of weakness, tone and reflexes?
Fatiguable weakness, normal/decreased tone, normal
Reflexes are normal in NMJ dysfunction T or F?
T
Sensory symptoms are present in NMJ dysfunction T or F?
F
Muscle disease has what presentation of tone and reflexes?
Decreased tone, decreased/absent tendon reflexes
corticospinal weakness describes what?
weak extensors in the arms
weak flexors in the legs
an UMN lesion will cause what kind of weakness below the level of the lesion?
pyramidal
how would you describe pyramidal weakness?
weakness in a corticospinal pattern eg weak extensors in arms, weak flexors in legs
what is paraparesis? it can be seen in a lesion where?
partial paralysis of the lower limbs
parasagittal frontal lobe lesion
mononeuropathy arises as a result of what condiitons?
nerve compression
mononeuritis multiplex
symmetrical peripheral neuropathy occurs as a result of what conditions?
diabetes
alcohol
metabolic insult
inherited disorders
muscle disorders tend to have proximal/distal weakness?
proximal
loss of sensation on a dermatome spinal level indicates…
a spinal cord lesion
stocking then glove sensory loss indicates…
length dependent neuropathy