X Neuro: Mrs Si (Burke) Flashcards
Assessing Mental Status
- Orientation (person, place, time, event)
- Mood/Behavior
- General knowledge
- ST/LT memory
- attention span/ability to focus
Assessment: Orientation
-person, place, time, event/purpose
A+Ox3 w understanding of event, or document pt doesn’t know whey they are here if they are A+O all three except event.
Adequate cerebral functioning is determined by ..
assessing mental status
Ability to show orientation depends on
memory and attention
Orientation Questions
- Person: What is your name?
- Place: Can you tell me the name of this facility? What town? (DON’T ask pt Do you know where you are? Insults them)
- Time: What year is it? What month? Who is president? (understand time frame)
- Purpose/Event: What brought you here?
Mood/Behavior: Mood
-How does pt feel? person has their own perception of how they feel. Opinion. They may look happy but not be.
Mood/Behavior: Behaviour
Cooperative? Agitated? Pleasant?
-be objective not subjective. i.e. if you document it, make sure you have proof to back it up.
General Knowledge Assessment Question
- Who’s the president of USA?
- What major holiday is in Nov?
- What was last big storm?
- What wars are we involved in recently?
Test for short term memory
- list 3 objects
- ask pt to repeat them
- check recall in 5 min
Test for Long Term memory
- job history
- where born/raised
- family hx, brothers, sisters?
Do demented pts have short term mem?
no
-talk about past to make them comfortable
Attn Span and Ability to Focus
ability to focus or concentrate over time on 1 task or activity.
-if inattentive, pt has hard time providing their med hx
LOC (Level of Consciousness)
- indicator of brain fx
- earliest sign of changes in MS
What are the 2 components of LOC
- Arousal (wakefulness)
- Awareness
LOC’s
ACLOSC
- alert
- confused
- lethargic
- obtunded (alertness w slow psycho motor response)
- stuporous (sleep like state, not coma, little or no spontaneous activity. only responds to vigorous stimulate)
- comatose (unable to respond to any stimuli verbal/physical)
When documenting LOC, Orientation
AA+Ox3 (awake, alert, oriented x3)
i.e. lethargic, easily arousable, oriented x3
Awareness
- ability to interact w and interpret your environment.
- higher fx controlled by brain stem
Components of Awareness
- orientation
- memory
- calculation (planning, time mgmt.)
- Fund of knowledge (the historically accumulated and culturally developed bodies of knowledge and skills essential for household or individual functioning and well-being”)
Glasgow Coma Scale
- assess of pt’s level of responsiveness
- use for pts who have suffered head injuries
- indicates severity of coma
- predicts possible pt outcomes
Glasgow Coma Scale evaluates…
- motor
- verbal
- eye opening responses
- scale of 3-15
- 3 = coma, 15 = normal
- not to replace a neuro assessment
Glasgow Coma Scale scores
Eye Opening 4 - Spontaneous 3 - to loud voice 2 - to pain 1 - none
Verbal Response 5 - oriented 4 - confused, disoriented 3 - inappropriate words 2 - incomprehensible sounds 1 - none
Best Motor Response 6 - obeys 5 - localizes 4 - withdraws (flexion) 3 - abnormal flexion (posturing) 2 - extension posturing 1 - none
2 Types of Posturing
Decorticate: pt turning inward
Deceribrate: turning outward
Stroke (CVA, Brain Attack)
Cerebrovascular accident: sudden death of brain cells due to lack of oxygen when blood flow to brain is impaired by blockage or rupture of an artery to the brain. Symptoms of a stroke depend on the area of the brain affected.
- # 1 cause of adult disability
- 5th leading cause of death in US
- Affects all ages
- # 3 for women
- # 5 for men
- # 1 preventable cause of disability
Stroke Stats
- In US, stroke every 40sec
- 795,000 have stroke every year
- 6.8mil Americans 20yrs UP have had a stroke
- once you have a stroke, poss of 2nd very real
Stroke Prevention
- diet
- exercise
- HTN controll
Stroke Risk Factors
- HTN
- Obesity
- DM
- AFIB (atria doesn’t pump well, while hesitating, blood stagnant and starts to clot, pump can send clot through body, candidates for AntiCoag meds, but if they are risk for fall bc can bleed out)
- Cocaine: vaso constrictor
- ETOH
- Male
- Oral Contraceptives
- Race (AfAm, Hispanic, Caucasion)
- Age 65 UP
- Family Hx
- Sleep Apnea
- Smoking
Stroke: Major Players
- HTN
- Cholesterol
- Smoking
- 40% of Americans have had at least 1 stroke
Stroke: Def
sudden loss of brain fx d/t blockage of rupture of blood vessel in or to the brain
Types of Strokes
- Ischemic (blockage)
- Hemorrhagic (ruptured BV)
Ischemic Stroke
- most common, 80%
- interruption of blood flow to brain causing hypoperfusion, hypoxia, cell death
Types of Ischemic Stroke
- Thrombotic
- Embolic
Thrombotic Stroke (Cerebral Thrombosis): Def
-clot forms in cerebral artery (supply blood to brain)
Thrombotic Stroke (Cerebral Thrombosis): Causes
- Atherosclerosis *** (most common)
- HTN
- DM (w accelerate Atherosclerosis)
What is Atherosclerosis?
- Accumulation of lipids, cholesterol on intimal layer of artery.
- causes narrowing
Atherosclerosis risks
if piece breaks off, the body sends inflammatory response and the artery clogs up. The cells and platelets obstruct entire vessel –> Ischemic Stroke
Thrombotic Stroke
- plaque narrows the artery
- The plaque ruptures
- clot forms
- clot blocks blood flow
- Ischemia occurs
Embolic Stroke
- blood clot forms in vessel, not in brain
- travels thru blood, lodges in small brain artery
- r/t afib
Embolic Clot
travelling clot
Other types of embolism
- Air Embolism (30ml air)
- Fat embolism (orthopedic sx, GU sx)
- Amniotic fluid (following child birth)
Hemorrhagic Stroke
Rupture of blood vessel in brain
Hemorrhagic Stroke: cause
- uncontrolled HTN
- aneurism
- arteriovenous malformations (AVMS)
Types of Hemorrhagic Stroke
- intracerebral (in brain)(d/t HTN)
- subarachnoid hemorrhage (in space btwn skull and brain)
Arterial Aneurysm
- dilation, ballooning of portion of artery
- forms at weak point
- rupture –> hemorrhage and death (arteries under high pressure)
- cause :trauma, congenital defect, infection
arteriovenous malformations (AVMS)
- congenital disorder
- direct connection btwn veins and arteries . cluster of blood vessels lacking capillaries
- risk for hemorrhage
- mostly asymtomatic, usually revealed in autopsy
Blood Vessels: hi pressure to Lo
Artery–arterioles–capillaries–venues–veins
See pic is AVM
arteriovenous malformations (AVMS)
Is hemorrhage d/t head injury considered a stroke?
NO
TIA (Mini Stroke)
- Transient Ischemic Attack
- decrease in blood to area of brain
- results in brief neuro dysfx lasting
TIA S/S
- temp vision loss
- apasia (A language disorder that affects a person’s ability to communicate.)
- contralateral hemiparesis (opposite side weakness, face, arms, hands, legs)
- paresthesia (numbness/tingling)
- vertigo
- ataxia (impaired coor)
- loss of consciousness (uncommon)
TIA is warning sign for what?
- CVA
- 33% w TIA will have CVA in 2-5yrs
- need to dx underlying cause (afib?)
- anti platelet aggregation/anticoag meds
- factor Xa inhibitor med
MED: Anti-Platelet Aggregation
- ASA
- Clopidogrel (Plavix)
- Aggrenox
- Ticlopidine (Ticlid)
MED: Anti Coag
Cumadin
MED: Factor Xa Inhibitor
Eliquis
MED: Aspirin (ASA)
- Class: salicylate
- decreases platelet aggregation
- Use: LO risk of thrombotic CVA
- Dose: 50mg - 325mg/day
- SE: bleeding, tinnitus
- Monitor: Liver, renal Fx
- Teach: swallow enteric whole
- Warning: use w caution for asthma, can worsen
MED: Aggrenox
- combo of ASA (25mg) and Dipyridamole (200mg)
- Class: platelet aggregate inhibitor
- Use: LOwer risk of thrombotic CVA
- Dose: 1cap BID
- SE: weakness, faint, hypotension, bleed, HA
- Monitor: liver/renal fx
- Teach: SS bleeding, no preg, no ETOH (cause stomach bleeding)
- Class D: w cause damage to fetus, goes into breast milk