Seizures Quiz Flashcards
Define Seizure and Convulsion
Seizure - sudden uncontrolled excessive electrical activity in the brain
Convulsion - An episode of excessive and abnormal motor activity, involving rapid contraction and relaxation of muscles
List 6 causes of seizures
- Hyper/hyponatraemia
- Hyper/hypoglycaemia
- Stroke/NTBI
- Drug withdrawals
- Brain tumour
- Traumatic HI
- Eclampsia
- Febrile Illness
- Infection (meningitis/encephalitis)
- Kidney/liver failure
- Drug induced
- Hypoxia
What is epilepsy?
A condition that is characterised by recurrent seizures (of no other cause) caused by excessive cortical nerve cell activity
What is the difference between partial and a generalised seizure?
Partial - seizure activity originates in one part of the brain (can be simple or complex)
Generalised - Seizure activity involves the entire brain
Define myoclonic seizure
Rapid, brief contractions of bodily muscles which usually occur at the same time on both sides of the body
Define Atonic Seizure
Abrupt loss of muscle tone (e.g. drop attacks, astatic or akinetic seizures)
Define absence seizure
- Lapse of awareness
- Start and end abruptly
- No warning and no after effect
- Common in children
Focal onset seizures (partial seizures) are subdivided into 2 categories. What are they?
- Focal aware seizures (conscious retained)
- Focal impaired seizured (LOC or impaired)
Why is status epilepsy an emergency?
- Continuous seizure for greater than 30 minutes
When would you treat a patient with seizure activity?
- Confirmed evidence of status epilepticus >5 mins or >2 seizures with no return of consciousness in between
- Includes GCSE or subtle SE (consult)
What is the maximum dose of midazolam you can administer an adult patient?
- 20mg IM
- 10mg IM (elderly or frail)
What assessment (not in the VSS) should you perform prior to administering midazolam?
- BSL
What are 4 side effects of midazolam?
- decreased level of consciousness
- Respiratory depression
- Loss of airway control
- Hypotension
What are the onset, peak and duration times of midazolam?
Onset - 3-5 mins
Peak - 15 mins
Duration - 30 mins
List the paediatric doses of IM Midazolam
- Newborn (<25 hours) 0.5mg IM
- Infant (<12 months) 1mg IM
- Small child (1-4 yrs) 2.5mg IM
- Medium child (5-11 yrs) 2.5-5mg IM