LO1-2 Neurological Disorders Flashcards

(64 cards)

1
Q

Seizures

A

Sudden erratic firing of neurons
Abnormal electrical discharge from the brain
Signs and symptoms depends on the part of brain
Causes- we don’t really know why idiopathic

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2
Q

Generalized seizure

A

Affect large portion of the brain

Includes tonic-clonic and absence types

Tonic clonic: full body movement

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3
Q

Steps of a tonic clonic

A

Aura: pt experiences a sensation

Loss of cx: pt loses consciousness

Tonic: body wide rigidity

Hypertonic: arched back and rigidity

Clonic: rhythm contraction of major muscle groups

Post seizure: muscles relax

Postictal: “rest” period for the brain may last minutes to hours

Breathing will sound abnormal

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4
Q

Absence Seizure

A

Absence spells (thousand-mile stare)

Most common in children

Short duration

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5
Q

Partial seizures

A

affecting a limited portion of the brain

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6
Q

Complex partial

Simple partial (Jacksonian March)

A

Complex partial

  • Subtle loss of cx
  • Head or eyes make small movement

Simple partial (Jacksonian March)

  • Tonic clonic activity to one body part
  • No aura or loss of cx
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7
Q

Febrile seizures

A

Caused by high body temp

Neurons in the brain are highly sensitive to temperature changes

As the temp rises the effects on the neurons become more profound and if allowed to progress may lead to a seizure

Simple and short- if they’re long or hard to stop the seizure is probably in conjunction with an underlying problem

Very short to no postictal period

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8
Q

Status epilepticus

A

A seizure that last for longer than 4-5mins OR consecutive seizures that occur without return of cx between seizure episodes

True medical emergency!!

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9
Q

Convulsive Disorders ASSESSMENT

A

Stay calm

Communication

Questions 
--Where and what was the patient doing before the seizure  
--How long did it last 
What did it look like 
--Does the pt have a history of seizures 
------Are they like this one 
------Any medication changes 
-Pt have a fever 
-Was the pt apneic, cyanotic or vomiting 
-Incontinence? 
-SAMPLE 
-v/s
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10
Q

Convulsive Disorders- TREATMENT

A
OPA/NPA 
Positioning  
Supplemental oxygen  
Don’t let tubing get tangled 
Suction ready 
Rule out treatable causes 
Temp  
BGL  
Pupils- drugs 
IV- med route 
Cardiac monitor  
ALS
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11
Q

Sinus headache

A

pain is usually behind the forehead and/or cheekbones

Caused by inflammation or infection of sinus cavities in the face

Increase with movement

Usually worse when person first wakes up

Can be flu symptoms

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12
Q

Cluster headache

A

pain is in and around one eye

Vascular type

Often start in face

Last 30-45 mins

Pain radiates to entire side of face

Can occur multiple times a day and then just go away

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13
Q

Tension headache

A

Pain is like a hand squeezing the head

Cause from stress

Tense muscles

Most common

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14
Q

Migraine headache

A

pain, nausea and visual changes are typical of classic form

Some patients experience aura before

Pain unilateral and focused

Pain will change or spread over time

Throbbing, pounding or pulsing in nature

Can last hours to days

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15
Q

cluster headache Treatment

A

Symptomatically

Supportive and comfort

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16
Q

Bell’s Palsy

A

Temporary paralysis of 7th cranial nerve

7th cranial nerve controls facial movement

Takes weeks to months to go back to normal

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17
Q

Bell’s Palsy Treatment

A

Symptomatically

Supportive and comfort

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18
Q

Trigeminal neuralgia

A

The normal function of facial blood vessels produces severe pain

As the blood vessel change in diameter to meet the needs of surrounding tissue their positions can irritate the trigeminal nerve

This nerve is responsible for receiving signals related to pain, temperature and pressure on the face

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19
Q
Cerebrovascular Accidents (CVA)
2 types:
A

Ischemic stroke: blockage

  • Thrombotic
  • Embolic

Hemorrhagic: ruptured artery/vesel

  • Loss of blood flow to some part of the brain
  • Temporary or permanent damage from lack of oxygen
  • Signs and symptoms depends on artery and area of brain
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20
Q

Ischemic CVA

A

75% most common

Caused when a blood vessel becomes occluded and blocked blood flow

Only the tissue on the blockage will be affected

Eventually will plateau
Severity depends on part of brain

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21
Q

Hemorrhagic

A

Bleeding that has interfered with the brains ability to function

20% less common

More devastating because it worsens overtime

Can start to see signs and symptoms of ICP

Pressure on them medulla oblagata results in Cushing’s reflex

Common complaint “worst headache they’ve ever experienced”

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22
Q

Transient ischemic attack (min stroke)

A

Temporary artery blockage

s/s resolve within 24hrs

warning sign of a larger CVA to come

present similar to CVA except s/s resolve

encourage transport for further assessment

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23
Q

signs and symptoms of CVA/ TIA

A
slurred speech 
unilateral weakness or paralysis 
facial droop 
arm drift 
headaches 
decreased LOC 
seizures 
N/V
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24
Q

CVA/ TIA ASSESSMENT

A
LOC ABCs  
mental status  
AOX4? 
GCS 
BGL 
FAST VAN
CHECK PUPILS
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25
CVA/ TIA Treatment
``` Secure airway Suction ready Positioning Constant reassessment of ABC Supplemental oxygen BGL IV try 2 large bore Avoid using the affected limb Cardiac monitoring COMMUNICATE KEEP THEM INFORMED THEY CAN STILL HEAR YOU ALS Get to hospital with abilities ```
26
Syncope
Sudden temporarily loss of consciousness and lose all postural tone Older people: dysrhythmias Younger: vagal Short in nature usually only a matter of seconds ``` No postictal period Causes Cardiac rhythm Cardiac muscle Dehydration Hypoglycemia Vasovagal ```
27
Abscess in the brain
Occurs when and infectious agent invades the CNS Over time swelling may occur causing neural tissue damage and increased ICP Signs and symptoms gradual and subtle, signs indicating infection
28
AEIOU TIPS
``` Alcohol Epilepsy Insulin Overdose Uremia (build up of toxins from renal disease) Trauma Infection Psychiatric or poisons Stroke ```
29
altered mental status Treatment
``` Hallmarks of ICP Cushings reflex Bradycardia Slow resps Hypertension ABCs Rule out treatable causes Symptomatically IV Cardiac monitor ALS if needed Transport ```
30
Amyotrophic Lateral Sclerosis (ALS)
Lou Gehrig’s Disease Involves the death of voluntary motor neurons There is no effect on the patients consciousness In most cases it is fatal Progression of ALS is patient dependent
31
Cerebral Palsy
Is a developmental condition that causes damage to the brain, typically the frontal lobe It is a self limiting condition and doesn’t worsen over time Begins in infancy, milestones like walking, crawling and talking maybe delayed 70-80% of CP cases are “spastic” (near constant state of contraction)
32
Multiple Sclerosis (MS)
Autoimmune condition that attacks the myelin sheath of neurons in the brain and spinal cord MS presentation usually follows a pattern of attacks and remissions The initial attack double vision and blurred vision or common reports other symptoms include muscle weakness impairment of pain, temperature and touch, tremors, speech disturbances, vertigo, bladder or bowel dysfunction, depression, euphoria, cognitive abnormalities and fatigue
33
Muscular Dystrophy (MD)
A non neurological condition of genetic origin marked by degeneration of muscular tissue Many forms of MD exist May affect all types of muscles including respiratory and cardiac muscles Mostly males Diagnosed before 5 years old Life expectancy not past 20 years
34
Parkinson Disease
The portion of the brain that produces dopamine becomes damaged Dopamine is responsible for smooth muscle contraction and other things ``` The classical presentation is: Tremor Postural instability Rigidity Bradykinesia- choppy movements ``` Continues to advance and worsen
35
Poliomyelitis
Viral infection In children Fecal oral route Multiplies in intestine and moves to neuro system Through vaccinations this disease has been almost eradicated from the world
36
Poliomyelitis s/s
``` NV Sore throat Diarrhea Stiff neck Weakness or paralysis ```
37
Dystonia
Severe abnormal muscle spasms that caused bizarre contortions, repetitive motions or postures Involuntary and often painful Sometimes caused by medication’s
38
Spasmodic torticollis
is a primary dystonia in which the neck muscles contract twitching the head to one side and pulling it forward or backward the head then remains painfully frozen in that position
39
Bell palsy
Temporary paralysis of the facial nerve seventh cranial nerve This facial nerve controls the muscles on each side of the face transmits taste sensations from the tongue And the talk is very sudden and can easily be confused with a stroke Find and symptoms include eyelid drooping, facial droop or weakness, drooling and loss of the ability to taste Will often resolve within two weeks
40
The damage of these invaders (bacteria) inflict occurs due to one of the two mechanisms:
the body’s reaction to the infection the activities of the attacking organisms
41
endotoxins | exotoxins
endotoxins: are proteins that are released by Graham negative bacteria when they die exotoxins: are proteins that are secreted by some bacteria or fungi to aid in the death and digestion of other cells
42
Guillain- Barre Syndrome
Rare condition Causes is unclear Condition is frightening for patients It begins with weakness in the legs the progresses to the thorax and finally arms Onset times is rather short- some cases hours from full mobility to complete paralysis requiring ventilator support
43
Meningitis
Infection or inflammation of the meninges Caused either by bacteria or virus Viral more common True diagnosis comes fro CSF exam Can be contagious Signs and symptoms start with flu symptoms Tell-tale sign is stiff neck
44
Encephalitis
Acute inflammation or infection ofnthe brain Differs from menigitis because it effects brain tissue rather that the meninges May be cause by Meningitis Virus Bacteria Can be contagious
45
Neoplasm
Cancer in the brain or spinal cord Two basic types: Primary: began in nervous system Metastatic: began else where and metastasized to nervous system
46
Causes Neoplasm
Degenerative: results were normal structure is altered overtime Developmental: arise in portions of the nervous system are not formed correctly The earlier the errors the more severe than damage
47
s/s Neoplasm
headache changes of mental status (behaviour personality) n/v stroke like symptoms seizures may present like brain abscess but no signs of infection] can be rapid or gradual
48
nerves are responsible for airway control
The trigeminal, glossopharyngeal, Vagus and hypoglossal nerves
49
Coma
a state in which the patient does not respond to verbal or painful stimuli
50
Agnosia
patient will be unable to name common objects because connections between visual interpretation of objects in the words that name them have been damaged
51
Apraxia
refers to the inability to know how to use a common object
52
Receptive aphasia
the patient cannot understand or receive speech but is able to speak clearly This form of aphasia indicates damage to the temporal lobe
53
Expressive aphasia:
the patient cannot speak or expressed some selves clearly but is able to understand speech This form of aphasia indicates damage to the frontal lobe which controls the motor portion of speech
54
Global aphasia
this form of aphasia is a combination of expressive and receptive patient will not follow commands and cannot answer your questions but they can think clearly
55
Anisocoria
unequal pupils with greater than 1 mm difference- can be a sign of increased ICP
56
Nystagmus
The involuntary, rhythmic movement of the eyes can be caused by seizures, vertigo and MS
57
Hemiparesis
weakness of one side of the body
58
Hemiplegia
paralysis of one side of the body
59
Decussation
in which nerves cross as they leave the cerebral cortex move through the brain stem and arrive at the spinal cord Left cerebral stroke with therefore result in right side arm and leg weakness but left side facial droop
60
Ataxia:
the term used to describe changes in a persons ability to perform coordinated motions like walking
61
Myoclonus
is a type of involuntary contraction of the muscles that is rapid and jerky nature
62
Intension tremors Postural tremors
Intension tremors: occur when the patient tries to reach out and grab an object Postural tremors: occur when a body part is required to maintain the same position for a long period of time
63
Paraesthesia
sensation of numbness or tingling
64
Anaesthesia
if the patient can feel nothing within a body part