NM differential Dx Flashcards
(231 cards)
What is MS?
chronic, progressive, demyelinating disease of the CNS
What population does MS commonly affect?
Female adults (20-50 y/o)
Description
- demyelinating lesions impair neural transmission which causes the nerves to fatigue rapidly
- lesions are common in pyramidal tract, dorsal columns, optic tract, periventricular areas of cerebrum, and cerebellar peduncles
- variable course with fluctuating episodes progressing to permanent dysfunction
- transient worsening of symptoms
MS
The following s/s indicate what diagnosis?
- mild to moderate cognitive impairment
- euphoria
- emotional dysregulation
- dysarthria
- dysphagia
- decreased ROM
- Sensory symptoms (parasthesia, hyperpathia, dysesthesias, trigeminal neuralgia, Lhermitte’s sign)
- diplopia and blurred vision (possible optic neuritis, blind spots (scotoma), and/or nystagmus)
- spasticity and hyperreflexia
- paresis
- ataxia
- intention tremors
- dysmetria
- dysdiadokinesia
- vestibular s/s
- fatigue
MS
What is the #1 complaint of MS?
fatigue
w/ activity and as the day progresses
Definition
Subtype of MS that is characterized by discrete attacks of neuro deficits with either full or partial recovery in subsequent weeks or months; periods between relapses are characterized by lack of disease progression
relapsing-remitting MS
What subtype of MS is common in 85% of cases?
Relapsing-remitting
definition
subtype of MS characterized by disease progression and a deterioration in function from onset; patient can experience moderate fluctuations in neurological disability but discrete attacks do not occur
primary-progressive
definition
Subtype of MS characterized by an initial relapsing-remitting course, followed by a change to a progressive course with a steady decline in function, with or without continued acute attacks
secondary-progressive
definition
Subtype of MS characterized by a steady deterioration in disease from onset but with occasional acute attacks; time between attacks are characterized by continued disease progression
progressive-relapsing
definition
Subtype of MS that is the first episode of inflammatory demyelination that could become MS if additional activity occurs
clinically isolated syndrome (CIS)
What type of MS can CIS progress to if a patient continues to have additional activity indicating possible MS?
relapsing-remitting
What is recommended for diagnosis of MS?
brain MRI with gladiolum
spinal cord MRI if brain MRI is non-diagnostic
Degeneration of what CNS structures lead to PD?
- dopaminergic substantia nigra neurons
- nigrostriatal pathways
- deficiency of basal ganglia corpus striatum
- loss of inhibitory dopamine results in excessive excitatory output from the cholinergic system of the basal ganglia (ACh)
Diagnosis
- rigidity
- bradykinesia
- resting tremor
- impaired postural reflexes
- altered gait: shuffling, freezing, festination (involuntary increase in walking speed)
- fatigue
- anxiety and depression
- slow progression with emergence of secondary impairments and permanent dysfunction
- altered cognition
- dysphagia
- orthostatic hypotension
- akathisia (restlessness)
- visual changes
- integumentary changes (edema, circulation, integrity)
- weakness
PD
What is the Hoehn and Yahr classification used for?
staging PD
What is stage 1 of Hoegn and Yahr classification?
Minimal or absent disability - unilateral symptoms
What is stage 2 of Hoegn and Yahr classification?
- Minimal bilateral or midline involvement
- no balance involvement
What is stage 3 of Hoegn and Yahr classification?
- impaired balance
- some activity restrictions
What is stage 4 of Hoegn and Yahr classification?
- all PD symptoms are present and severe
- standing and walking with assistance
What is stage 5 of Hoegn and Yahr classification?
confinement to bed or WC
What should you examine for when you have a patient taking Levodopa for PD management?
fluctuating symptoms (on-off phenomenon)
Common with disease progression and long-term use of levodopa
What are adverse effects of levodopa (sinemet)?
- n/v
- orthostatic hypotension
- arrythmia
- dyskinesia/involuntary movements
- psychoses/hallucinations
What causes presyncope?
CVD reducing cerebral perfusion