✅NEUROLOGY Flashcards
Pts with [Dementia with Lewy Bodies (DLB)] are extremely sensitive to _____ and it may cause what side effects?-3
DLB at the DMV
ANTIPSYCHOTICS
________________
- Dementia INC
- MichaelJFox PARK INC
- autonomic dysfunction
Dementia with Lewy Bodies (DLB) CP - 3
DLB at the DMV
- Dementia confusion periodically
- MichaelJFox Parkinsonism (PARK + hamp) tht does NOT respond to dopaminergic tx
- Visual Hallucinations
Lewy Body= [LABS (Lewy α-synuclein BodieS)] that are Eosinophilic intracytoplasmic accumulations
Dementia with Lewy Bodies (DLB) CP - 3
DLB at the DMV
- Dementia confusion periodically
- MichaelJFox Parkinsonism (PARK + hamp) tht does NOT respond to dopaminergic tx
- Visual Hallucinations
Lewy Body= [LABS (Lewy α-synuclein BodieS)] that are Eosinophilic intracytoplasmic accumulations
[Dementia with Lewy Bodies (DLB)] Tx- 2
1. Rivastigmine AChinesterase inhibitor
- [2nd Gen Antipsychotic] for visual hallucination
* REMEMBER THAT DLB PTS ARE SENSITIVE TO ANTIPSYCHOTICS*
Frontotemporal Pick’s Dementia
Sx -2
Prounouced Frontal & Temporal lobe atrophy –>
[Socially inappropriate Behavior] + aphasia
OCCURS MORE IN FEMALES!!!
A: Demographic of Frontotemporal Pick’s Dementia?
B: Mode Of Inheritance
A: 50-60 yo Females (Alzheimer = > 60)
B: Auto Dominant
Early Findings of Alzheimer’s - 4
CLAV –> HANDU
Cognitive PROGRESSIVE ⬇︎
Language ⬇︎
Anterograde immediate memory loss
Visualspatial disorientation (loss in ur own neighborhood)
Onsets after 60 yo

Clinical Criteria for diagnosing Alzheimer’s -5
CLAV –> HANDU
- GOE 2 Cognitive deficits
- Worsening Memory
- Consciousness intact
- Onsets after 60 yo
- No other Systemic/Neuro DO to cause cognitive defects

Normal Pressure Hydrocephalus Sx (3); Which is earliest to present?
⬇︎CSF absorption –> Wacky, Wobbly & Wet!

Wacky (memory loss)
Wet (Urinary Incontinence from compressing periventricular cortico-cortical white fibers traveling to sacral micturition center)
Normal Pressure Hydrocephalus characteristics - 4
Wacky, Wobbly & Wet!
- Idiopathic
- Episodic
- Elderly
- Does not ⬆︎ SubArachnoid space volume
Etx: ⬇︎Arachnoid villi CSF Absorption vs obstruction

Alzheimer’s Dz etx (3)
Alzheimers etx = CHA
**Cleavage, Hemorrhage, (ACh⬇︎) **
- Cleavage of [chromo 21 transmembrane amyloid precursor glycoprotein] –> β-amyloid which accumulates–> [Neuritic Senile plaques] in temporal lobe early on.
- Hemorrhages Spontaneously occur in Occipital/Parietal lobes (image) from β-amyloid deposition in cerebral vessels
- ACh ⬇︎ in the [Basal nc. of Meynert] & Hippocampus 2/2 β-amyloid accumulation –> defective [Choline Acetyltransferase] in those areas –> Alzheimer Sx (CLAV–>HANDU)

Alzheimer’s Dz etx (3)
Alzheimers etx = CHA
**Cleavage, Hemorrhage, (ACh⬇︎) **
- Cleavage of [chromo 21 transmembrane amyloid precursor glycoprotein] –> β-amyloid which accumulates–> [Neuritic Senile plaques] in temporal lobe early on.
- Hemorrhages Spontaneously occur in Occipital/Parietal lobes (image) from β-amyloid deposition in cerebral vessels
- ACh ⬇︎ in the [Basal nc. of Meynert] & Hippocampus 2/2 β-amyloid accumulation –> defective [Choline Acetyltransferase] in those areas –> Alzheimer Sx (CLAV–>HANDU)

Late Findings of Alzheimer’s - 5
CLAV –> HANDU
Hallucinations
Agnosia (unable to recognize things via 5 senses)
Neuro ∆ (seizure/myoclonus)
Dyspraxia (unable to do things from before)
Urinary Incontinence
Onsets after 60 yo

Alzheimer’s tx - 7 ; Which medication should be used last?
CLAV –> HANDU
- Donepezil - AChnesterase inhibitor
- Tacrine - AChnesterase inhibitor
- Rivastigmine - AChnesterase inhibitor
- Galantamine - AChnesterase inhibitor
- Memantine - NMDA R Blocker: USE LAST
- Respite Care for Caregivers (ex: Adult day program)
- Atypical antipsychotics - Olanzapine vs Risperidone (for acute psycosis)

Alzheimer’s tx - 7 ; Which medication should be used last?
CLAV –> HANDU
- Donepezil - AChnesterase inhibitor
- Tacrine - AChnesterase inhibitor
- Rivastigmine - AChnesterase inhibitor
- Galantamine - AChnesterase inhibitor
- Memantine - NMDA R Blocker: USE LAST
- Respite Care for Caregivers (ex: Adult day program)
- Atypical antipsychotics - Olanzapine vs Risperidone (for acute psycosis)

Late Findings of Alzheimer’s - 5
CLAV –> HANDU
Hallucinations
Agnosia (unable to recognize things via 5 senses)
Neuro ∆ (seizure/myoclonus)
Dyspraxia (unable to do things from before)
Urinary Incontinence
Onsets after 60 yo

Normal Pressure Hydrocephalus characteristics - 4
Wacky, Wobbly & Wet!
- Idiopathic
- Episodic
- Elderly
- Does not ⬆︎ SubArachnoid space volume
Etx: ⬇︎Arachnoid villi CSF Absorption vs obstruction

Normal Pressure Hydrocephalus Sx (3); Which is earliest to present?
⬇︎CSF absorption –> Wacky, Wobbly & Wet!

Wacky (memory loss)
Wet (Urinary Incontinence from compressing periventricular cortico-cortical white fibers traveling to sacral micturition center)
Clinical Criteria for diagnosing Alzheimer’s -5
CLAV –> HANDU
- GOE 2 Cognitive deficits
- Worsening Memory
- Consciousness intact
- Onsets after 60 yo
- No other Systemic/Neuro DO to cause cognitive defects

Early Findings of Alzheimer’s - 4
CLAV –> HANDU
Cognitive PROGRESSIVE ⬇︎
Language ⬇︎
Anterograde immediate memory loss
Visualspatial disorientation (loss in ur own neighborhood)
Onsets after 60 yo

Memantine MOA ; Indication
Blocks Glutamate from binding to NMDA Receptor; Moderate to Severe Alzheimer’s
Memantine MOA ; Indication
Blocks Glutamate from binding to NMDA Receptor; Moderate to Severe Alzheimer’s
Name the Major UMN signs (5)
UMN signs = Weak MESH
Weakness
[Spastic Gait & Paralysis] (partially from disproportionate Extensor weakness)
[Exaggerated Reflexes (Babinski)]
Mental Status change
HemipLegia
Parkinsonism Clinical signs (8)
PARK & hamp
[Pill Rolling Resting 4-6 Hz unilateral Tremor] worst with Rest & Mental Task
[Rigidity Cogwheel]
BradyKinesia
[AReflexia posturally] –>Shuffling Gait/Fall when turning or stopping
+
- hypOphonic speech
- Autonomic ⬇︎ (constipation / bladder problems / orthostatic hypOtension)
- micrographia
- poker masked face
- PARK = primary signs*

3 Main causes of Spinal Cord Compression

- DJD Disc Herniation (Smoking risk factor)
- [Epidural Staph a. Abscess (think IV drug user vs DM)]
- Tumor (Prostate/Renal/Lung/Breast/Multiple Myeloma mets)

Dx = MRI, Positive Straight Leg, Classic S/S
DJD=Degenerative Joint Disease
Etx of Parkinsons Disease

[LABS (Lewy α-synucleinBodieS)] accumulation in [substantia nigra pars compacta] –>degeneration –> ⬇︎Dopamine release and ⬇︎ stimulation of Striatum which –> allows Globus pallidus internal to continuously inhibit [VA/VL Thalamus from stimulating motor cortex]

Where are Brain Metastasis typically found? - 2
Gray White Junction vs Watershed Zones

- Brain metastases are multifocal and spherical*
- Most common= [LUNG NonSOLC] > Breast/Colon/Kidney/Melanoma*
Name the Lower Motor Neuron signs - 4
LMN signs (FAAW) - Fasciculations / Atrophy & Areflexia / Weakness
Bromocriptine MOA ; Indication
Dopamine PostSynaptic R Agonist ; Parkinson’s

Parkinsonism is often caused by ____ or _____
Name 2 rare causes of Parkinsonism
Common = [Substantia nigra pars compacta degeneration] vs [D2 Blocker Drugs]
rare = Toxic levels of CO2 or ManGanese
PARK & hamp

Name the 3 components of EPS-ExtraPyramidalSymptoms
EPS = DAD
[Drug-induced Parkinsonism]
Akathisia (restlessness)
Dystonia (sudden twisted posture worst with activity)
Tx = Benztropine vs Diphenhydramine
Parkinson’s Dz Tx - 6
“Eat SALADS after you Park”

- [Levodopa (Dopamine Precursor) + Carbidopa]
- Amantidine
- Anticholinergics
- [Dopamine PostSynaptic Agonist] (NonErgot: Ropinirole vs. Pramipexole) & (Ergot:Bromocriptine)
- Selegiline
-
Surgery
- Pallidotomy: Destructive of [Globus Pallidus:internal]
- SubThalamic nuc. inhibition with electrode
- ANT Choroidal a ligation
How is [Brain Death] diagnosed? -4
- Brainstem functions ABSENT (pupil, pain response, gag, corneal)
- CORTEX functions ABSENT
- Spinal Cord (Deep Tendon Reflex) are +/-
- APNEA TEST FOR CONFIRMATION
Serotonin Syndrome Clinical Presentation (8)
“Serotonin gave me the SHIVERS!”
Shivering
[Hyperreflexia & Myoclonus]
INC Temp
[Vitals instability] (tachycardia vs. tachypnea vs. HTN)
Encephalopathy (Confusion vs. Agitation)
Restlessness
Sweating
Italicized = Triad Sx
How do you treat Refractory Serotonin Syndrome
Cyproheptadine
(antihistamine with anti-serotonergic properties)
Describe Neuroleptic Malignant Syndrome - 5
RARE SE of Any Dopamine Blocker (Antipsychotics vs. GI meds) that –> FEVER
- [Fever > 40C]
- Encephalopathy (Confusion)
- Vitals unstable (INC HR / RR / BP from autonomic dysfunction)
- Enzymes ⬆︎ (CPK)
- [Rigitidy lead pipe] (Tremor)
What’s the best way to approach treatment for [Neuroleptic Malignant Syndrome]-2
Treat [Rigiditiy lead pipe] with Dantrolene (inhibits Ca+ release from sk. muscle sarcoplasmic reticulum)
+
supportive care
Why does Fluoxetine need __ weeks to washout before starting a MAOI?
5
________________
SSRI + MAOI ➜ SEROTONIN SYNDRONE (SHIVERS)
Name the Serotonergic Drugs -5
- SSRI
- SNRI
- TriCyclic Antidepressants
- Tramadol
- MDMA
Which 2 drugs are contraindicated with Serotonergic drugs?
- MAOI
- Linezolid
Sciatica etx ; Clinical Presentation - 3
“Having Sciatica makes you break LAWS”
- [Lower Back pain w/radiation down POSTERIOR thigh –> lateral foot]
- Ankle jerk reflex ABSENT (this can occur naturally with age!)
- Weak Hip Extension
- [S1 n PosteroLateral compression at L4-5 or L5-S1] –> UMN signs

Sciatica tx ; dx?
“Having Sciatica makes you break LAWS”
NSAIDs + APAP = 1st line as Sciatica sx are self limited
Dx = CLINICAL (Only use MRI for confirmation of disc herniation if sensory/motor deficit, cauda equina syndrome sx or epidural abscess r/o)

What is the femoral nerve responsible for? -5
- MOTOR EXTENDS KNEE
- REFLEX Knee Jerk
- SENSORY Anteromedial thigh
- SENSORY medial lower leg
- SENSORY arch of foot
Most common [1° CNS Tumors] in Adults (3)
GMS
Glioblastoma astrocytoma (GRADE 4 - MALIGNANT - 2nd MOST COMMON to Metastasis)
MeninGioma benign
SChWannoma
Brain Metastasis=MOST COMMON ADULT BRAIN CA
List the n. roots associated with Common Peroneal n.
L4-S2
foot is dropPED (Peroneal Everts & Dorsiflexes)
- Commonly caused by L5 Radiculopathy*
- Dx: Knee MRI vs EMG*

List the n. roots associated with Tibial n.
L4-S3 (Three)
can’t walk on TIPtoes (Tibial Inverts & Plantarflexes)
Commonly caused by L5 Radiculopathy

Most common [1° CNS Tumors] in Pediatrics-3 ; what’s the only one that’s supratentorial?
PEDs
Pilocytic Astrocytoma = MOST COMMON and can be Supratentorial OR infratentorial
Ependymoma (found in 4th Vt)
meDulloblastoma PNET = 2nd most common
Ependymoma and meDulloblastoma are infratentorial POST fossa(image)

List the n. roots associated with Common Peroneal n.
L4-S2
foot is dropPED (Peroneal Everts & Dorsiflexes)
- Commonly caused by L5 Radiculopathy*
- Dx: Knee MRI vs EMG*

What are the functions of the Common Peroneal n. -2
L4-S2
foot is dropPED (Peroneal Everts & Dorsiflexes)
- Commonly caused by L5 Radiculopathy*
- Dx: Knee MRI vs EMG*

List the n. roots associated with Tibial n.
L4-S3 (Three)
can’t walk on TIPtoes (Tibial Inverts & Plantarflexes)
Commonly caused by L5 Radiculopathy

List the n. roots associated with Tibial n.
L4-S3 (Three)
can’t walk on TIPtoes (Tibial Inverts & Plantarflexes)
Commonly caused by L5 Radiculopathy

Functions of the Obturator n.-2
- MOTOR Leg ADDuction
- SENSORY medial thigh
________________
usually from pelvic trauma or surgery