aan Flashcards

1
Q

Cardinal Signs of Parkinson’s

A

Postural instability
Resting Tremor
Cogwheel rigidity
Bradykinesia

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2
Q

CSF findings in MS

A

Mild Pleocytosis w/ low PMN’s
NL glucose
NL to mildly elevated proteins
ie WBC 20, PMN 5%, Glucose 75, Protein 80
ie CSF study mostly normal, look for IgG oligoclonal bands

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3
Q

What is the recommendation for a person that encounters a concussion through a contact sport?

A

D/c play for today, evaluate prior to the next game

Must be asymptomatic at rest w/o medication

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4
Q

Pt is able to draw geometric shapes, but cannot draw specific animals and all attempts at drawing an animal look the same

A

Semantic Problem - lost the sense of what makes animals unique. Defect in dominant lateral temporal lobe. Associate with Alzheimer’s
Being able to draw shapes suggest corticospatial is intact (non dominant parietal lobe)

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5
Q

What is a good medication for a female of child bearing age with a generalized seizure disorder

A

Lamotrigine - just titrate up slowly to avoid Stevens Johnson
Avoid valproic acid and phenytoin - birth defects
Topiramate is a good choice but may have cognitive side effects

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6
Q

Pt has syx similar to migraine, but is not responsive during episodes and is fatigued after. She has no memory of the event

A

Give lamotrigine - effective in simple and complex seizures

These AOC are suggestive of temporal lobe epilepsy

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7
Q

Syx of ICA dissection

A
Horner syndrome (ipsi ptosis, anoscoria) +
Contra hemiparesis (varying levels)
Stroke like syx in a younger pt following a trauma, or can be seen in elderly
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8
Q

Pt has loss of L superior corner of visual field in both eyes. Where is the lesion?

A

R temporal

“pie in the sky” visual loss indicated lesion w/in the Meyer loop of the temporal lobe

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9
Q

DM pt with neuropathy is highly suggestive of also having?

A

nephropathy OR retinopathy - if they have neither the cause may not be related to their DM
Symmetric sensory neuropathy

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10
Q

3 cardinal findings in brain death

A
  1. Unresponsiveness
  2. Absence of Brainstem reflexes
  3. Apnea
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11
Q

Glove and stocking parathesia + Proximal and distal muscle weakness x nmonths
+ slowed nerve conduction velocity + elevated protein in CSF

A

Chronic inflammatory Demyelinating polyneuropathy (CIDP)

Chronic form of Guillain-Barre. Can look similar but months vs weeks

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12
Q

Compare Becker and Duchenne muscular dystrophy

A

Both are X-linked

BMD progresses at a much slower late, so suspect DMD in a young pt

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13
Q

What syx is expected in a small fiber peripheral neuropathy?

A

Loss of temperature sensation

Pain and temperature are perceived through the small fibers (hence burning pain and parathesia)

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14
Q

Debilitating HA triggered by weather changes

A

Migraine w/o aura

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15
Q

Pt has defect in facial recognition. Where is the lesion?

A

Prosopagnosia

b/l inferior occipitotemporal cortex (fulsiform gyrus

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16
Q

Conductive aphasia + R homonymous hemianopsia + vomitting

A

Intracerebral hemorrhage of the L temporal and parietal lobe

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17
Q

Middle aged man has night terros and vivid dreams

A

REM sleep behavior disorder (RBD)
Associated with onset of neurodegenerative disorders (approx 10 years later); Parkinson’s, Lewy Body
Loss of motor atonia during sleep causing pts to act out their dreams

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18
Q

Expressive aphasia (lack of fluency, intact comprehension, intact awareness)

A

Dominant frontal cortex

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19
Q

Dementia pt has bradycardia, be suspicious for which med?

A

Donepezil

cholinesterase inhibitor

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20
Q

IDD w/ long narrow face, prominent ears, large body habitus, low muscle tone, macroorchidism

A

Fragile X syndrome

mutation in FMR1

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21
Q

Medical management of ischemic stroke

A

tPA w/in 4 hours of syx onset (if BP <185/110)
ASA 24 hours later
Heparin for long term

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22
Q

Pt has neck pain and Horner syndrome after a chiropracter appointment. What study does she need?

A

MRA

Look for Carotid or vetebral dissection

23
Q

Which MS treatment is associated with increased risk of depression

24
Q

Pt has general weakness the morning after working out and a large dinner

A

Check Sr K+
Hyper or Hypokalemic periodic paralysis
AD, K+ can be normal between attacks

25
Most common cause of sporadic encephalitis in the US
HSV 1 MRI reveals lesion in frontal and temporal CSF PCR is highly sensitive
26
Postural tremor
Essential tremor | AD
27
Tx for Wilson's dz
Penicillamine
28
Pt has numbness stiffness, unsteady gait, stocking decrease in sensation, beefy red tongue
B12 deficiency | Glossitis is a good clue
29
AMS, dysconjugate gaze, intermittent nystagmus, wide-based unsteady gait
Wernicke encephalopathy | Give thiamine
30
Difficulty w/ elbow flexion, forearm supination, numbness over the lateral aspect of forearm
Musculocutaneous n. | C7 alone would not affect the biceps or brachialis
31
Pathophys of optic neuritis
Demyelination of the optic n. Myelin is made by: CNS - oligodendroglial cells Peripheral - Schwann cells
32
Pt reports multiple episodes slowly progressive arm numbness lasting approx 30 minutes
Migraine aura | Typically progress over 15-30 minutes
33
Pt reports a single episode of arm numbness that started aburptly
TIA
34
Pt reports episodes of arm numbness lasting 2-3 minutes
Seizure
35
What Ab titer is useful in a pt with optic neuritis to r/o causes other than MS?
anti-aquaporin 4 Present in neuromyelitis optica Usually aggressive and does not respond to MS therapies. Needs more aggressive immunosuppresion
36
Following a URI, pt has acute severe pain around the shoulder followed by weakness and atrophy of the muscles in the arm
Parsonage-Turner syndrome (idiopathic brachial plexopathy) Typically unilateral, can cause minimal sensory loss Tx - symptomatic for pain and PT
37
Where is the lesion in a pt with dysarthria, R arm weakness, R facial weakness?
Left pons Dysarthria-clumsy hand syndrome CT reveals lesions in the contralateral pons or internal capsule
38
Decreased Biceps reflex is associated with a disc herniation at?
C5-C6 5 6 pick up sticks C5 nerve passes above C6 vertebrae
39
Pt has episodes of LOC x seconds and falls with brief tonic stiffening of all four extremities and axial arching
Get orthostatic BP's to evaluation for syncope | The tonic episodes w/o a post-ictal state is common in syncope
40
Pt report episodes of a curtain descending over her R eye. Which vessel is involved?
R Internal carotid a. | Amaurosis fugax = TIA of the retina in the area of the opthalmic a.
41
Pt has sensory defects and weakness in thumb abduction and flexion. Where is the lesion?
Median n. at the forearm | CTS would explain weak thumb abduction but not flexion (flexor pollicis longus is inn proximal to the CT)
42
Pt has hemiballism (abn large amplitude flailing) due to ICH. Where is the hemorrhage?
Subthalamic nucleus Part of the basal ganglia responsible for inhibition of movement Contralateral hemiballism
43
Where is DBS placed in a PD pt?
Subthalamic nucleus | Helps to reduce tremors
44
Most appropriate migrane prophylaxis med for a pt with insomnia
Amitriptyline - can help with insomnia Topiramate - causes renal stones Propanaolol - contra in asthma Valproic acid - teratogen, hepatotoxic
45
Most common neuropathy of pregnancy?
CTS Begins in 3rd trimester, resolves after delivery due to edema Compression of median nerve Pain and sensory loss of thumb, index and middle finger
46
Pt continues to seize after 2 doses of lorazepam. Now what?
Give fosphenytoin
47
What is a good anti-emetic for a PD pt?
Ondansetron - least DA blocking properties (vs. metoclopramide, prochlorperazine, promethazine, trimethobenzamide)
48
Pt has weakness of brachioradialis and inability to extend wrist and fingers. Sensory loss over dorsum of hand
Compression of radial nerve at the humerus
49
Migraine pt has short term memory impairment lasting less than 24 hours
Transient global amnesia | Reassurance
50
Pt has worse HA of his life, but CT is negative. Now what?
LP | RBC's suggests SAH
51
Acute onset of unilateral onset of sensorineural hearing loss
``` Acoustic trauma (altitiude, flying) If it doesn't get better - image for a Schwanoma ```
52
A pt that required ACLS is now comatose with involuntary rapid muscle jerks. Why?
Myoclonus due to cerebral anoxia Usually a poor prognosis Need an EEG to r/o status epilepticus and labs
53
Teenager w/ HA and impaired upward gaze, lid retraction
Pineal gland tumor (parinaud syndrome) | Compresses dorsal midbrain
54
Pt with cauda equina syndrome urgently need?
Surgical decompression to prevent further neurologic compromise