Human disease L16: Neurology 2 blackouts Flashcards
which of these is not a synonym of black out
loss of consciousness
syncope
coma
faint
oblivious
swoon
oblivious
blackouts are usually a temporary loss of consciousness. if a patient was to have a blackout in your chair. what information would be helpful to the paramedics
a witness history is tremendously useful
- if you witnessed the circumstances before the blackout, what happened during the loss of consciousness and what happened after they regained consciousness and how long it took them can help diagnose their cause.
there are allot of reasons for someone to suddenly lose consciousness, these reasons fall in to four major system dysfunctions, what are they?
Cardiovascular
Epileptic seizure
Hypoglycaemia
Other
of the four system dysfunctions that result in blackouts which system dysfucntion is the most common
cardiovascular - system dysfunction
of the cardiovascular system dysfunction, which event is responsible for the most common cause of blackouts
vasovagal event “faint”
this when blood pressure drops and pulse reduces, fear or freight, and even hunger can contribute to vasovagal event
someone who has undergone a vasovagal “faint”, how long do they normally remain unconscious for?
usually for a few seconds
what system dysfunction does postural hypotension fall in to
cardiovascular
the sudden fall in blood pressure when we stand up results in the failure to sustain cerebral blood flow. what does this result in
this will result you to feel dizzy, sometimes even blackout. this is called postural hypotension
which two cardiac arrhythmia result in blackouts
bradyarrhythmia
and
tachyarrhythmia
epileptic seizures fall in to which system dysfunction category
neurological
which system dysfunction category does hypoglycaemia fall in to?
metabolic
if someone was to faint as a result of fear, emotion, heat, prolonged standing, and hunger, what type of blackout would this be
vasovagal
what is the general recovery time for someome who has undegone a vasovagal faint
recovery within 2 minutes
how would you manage someone who has undergone a vasovagal faint, to increase venous return
lie the patient flat and elevate legs
postural hypotension is much more common in which demographic
the elderly