Clinical Care- Seizures Flashcards
What is the definition of a seizure?
an abnormal, excessive, hypersynchronous discharge from an aggregate of CNS neurons.
Can have various manifestations.
different etiologies of seizures, young adults (18-35)
trauma
metabolic disorders (alcohol withdrawal, uremia, hyper/hypoglycemia)
CNS infection
etiology of seizures older adults
Older adults (>35)
CVD Brain tumor metabolic disorders degenerative disorders (alzheimers) CNS infection
two types of partial seizures:
focal seizure with retained awareness
focal seizure with impaired awareness
presentation of focal seizures with retained awareness
formerly known as simple partial seizure
only one part of the brain is affected
presentation depends on the focal area involved.
presentation of focal seizure with impaired awareness
formerly known as complex partial seizure
only on part of the brain is affected
patient appears to be awake but not in contact with other in environment and do not respond normally to instruction or questions.
no memory of what occurred during the seizure
automatisms (facial grimacing, gesturing, lip smacking, chewing)
presentation of generalized seizures
involves the entire brain
may or may not lead to alteration of consciousness
Most common is the tonic-clonic seizure (AKA grand mal)
characterizations of tonic-clonic seizures
tonic phase characterized by sudden muscle stiffening
clonic phase characterized by rhythmic jerking
(tongue biting is common)
episodes usually last 1-2 minutes
besides tonic clonic, what are other types of seizures
absence seizures
clonic seizures
atonic seizures (loss of tone in all the muscles)
characteristics of postictal phase of a tonic clonic seizure
somnolence, confusion of headache that may occur for several hours
patient often have no recollection of event
weakness of limbs may occur (todd paralysis)
How do you diagnose a seizure
Video EEG monitoring
management and treatment of seizures: first aid
clear the room, maintain airway if needed.
for partial seizures, redirect gently
start IV cath
blood work: elecrolytes, LFT, CBC, finger stick glucose
treatment for active seizures
Diazepam 5 mg IV/IM q5-10 min. do not exceed 30mg
MEDEVAC immediately
What is a life threatening complication of seizures
status epilepticus (EMERGENCY)
definition of status epilepticus
single seizure lasting more than or equal to 5 min or 2 or more seizures between which there is an incomplete recovery of consciousness