chapter 61 vidlec part 1 Flashcards
is the most important indicator of the patient’s condition
level of responsiveness and consciousness
continuum from normal alertness and full cognition(consciousness) to coma
level of consciousness
is altered LOC a a disorder or not?
NO
unconsciousness, unarousable unresponsiveness
coma
this score indicates coma
8 and below
this score indicates deep coma
3 below
unresponsiveness to the environment, makes no movement or sound but sometimes opens eyes
akinetic mutism
devoid of cognitive function but has sleep-wake cycles
persistent vegetative state
inability to move or respond EXCEPT FOR EYE movements due to a lesion affecting the pons
locked in syndrome
easiest way to check LOC?
orientation
what question to ask in orientation?
time
place
person
what is assessed in LOC?
eye signs
verbal response
motor response
alertness
reflexes
moves one’s body
decorticate
the worst between the two, the body extends
decrebrate
decerebrate produces severe damages to what part of the brain?
midbrain
pons
the body temperature of an unconscious patient is NEVER taken by which route:
mouth
what nursing intervention should you do to px with pneumonia?
turn px every 2 hrs
chest physiotherapy
what position is recommended for aspiration with altered LOC?
fowler ; 90 degrees
what nursing intervention should you do to px with Deep Vein Thrombosis (DVT)
use anti-embolic stockings
elevate legs
because of limited space in the skull, an increase in any one of components of the skull (brain tissue, blood, CSF) will cause a change in the volume of the others
monroe kellie hypothesis
what is normal ICP
10-20 mmhg
increased ICP ______ cerebral perfusion and causes ischemia, cell death, and (further) edema
decreased cerebral perfusion
brain tissues may shift through the dura and result in
herniation
refers to the brain’s ability to change the diameter of blood vessels to maintain cerebral blood flow
autoregulation
decreased CO2, __________
vasoconstriction
increased CO2, __________
vasodilatation
it INCREASE the difference between the diastolic and systolic bp
widened BP
what is the earliest sign of increasing ICP ?
change in LOC
CPP means
cerebral perfusion pressure
formula for CPP
MAP - ICP
normal CPP is _____
70 to 100
cushing’s triad consists of:
decreased heart rate
irregular respiration
widened pulse pressure
or
bradycardia
bradypnea
HPN
a CPP of less than ___ results in permanent damage
50