← Clinical Reasoning

Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

Seizure and Status Epilepticus Stabilization
—
In one line
  • ·A seizure that lasts longer than 5 minutes, or seizures that come back without the person waking up in between, is status epilepticus (a seizure that will not stop) — a brain emergency that needs medicine right away.
—
Normal physiology
  • ·The brain runs on a careful balance between excitation (go-signals from glutamate, the brain's main gas pedal) and inhibition (stop-signals from GABA, the brain's main brake). Neurons talk to each other by releasing these chemical messengers across tiny gaps called synapses. Normally, the brake and gas pedal balance so precisely that your thoughts, movements, and awareness flow smoothly without runaway firing.
—
What goes wrong
  • ·The brake system (GABA) fails or the gas pedal (glutamate) gets stuck wide open, so neurons fire in a runaway chain that spreads across the whole brain like a wildfire. Once the seizure starts, the longer it goes, the harder it is to stop — the brain's own brakes burn out from overuse and the neurons become resistant to the calming signals.
—
Hallmark signs
  • ·Repeating jerking movements of the arms, legs, or whole body that the person cannot stop
  • ·Staring blankly and not responding when you call their name or touch them
  • ·Confusion or sleepiness that does not clear up after a few minutes
  • ·Eyes rolled back, eyelids fluttering, or unusual eye movements
  • ·Lips turning blue or skin looking dusky gray
  • ·Foaming or drooling at the mouth
  • ·Loss of bladder or bowel control
  • ·Fever
—
Red flags · escalate now
  • ·Seizure lasting longer than 5 minutes, or a second seizure starting before the person wakes up fully
  • ·Lips or face turning blue, gasping, or not breathing normally
  • ·Pregnant woman having a seizure
  • ·Seizure after a head injury
  • ·Confusion or weakness that does not improve 15–20 minutes after shaking stops
—
Workup
  • ·Bedside glucose (finger-stick)
  • ·Basic metabolic panel (BMP): sodium, potassium, calcium, magnesium, creatinine, BUN
  • ·Anti-epileptic drug (AED) levels: phenytoin, valproate, carbamazepine, or levetiracetam
  • ·Complete blood count (CBC) with differential
  • ·Urine or blood toxicology screen (drug screen)
  • ·Non-contrast CT scan of the head
  • ·Electroencephalogram (EEG)
  • ·Lumbar puncture (spinal tap) with cerebrospinal fluid (CSF) analysis
—
Treatment
  • ·Lorazepam 4 mg IV (or midazolam 10 mg IM/IN) within the first 5 minutes
  • ·Check blood glucose and give dextrose 50% (25–50 mL IV) if low; check electrolytes (sodium, magnesium, calcium); start IV line and draw blood
  • ·Give fosphenytoin 20 PE/kg IV, or levetiracetam 60 mg/kg IV, or valproate 40 mg/kg IV (within 5–40 minutes)
  • ·Ask history: prior seizures or epilepsy? AED levels or missed doses? Alcohol use or sudden stopping? Pregnancy? Recent drugs, infections, or head injury?
  • ·If still seizing after 40 minutes: intubate the airway, start propofol or midazolam drip or pentobarbital, watch continuous EEG for burst suppression
  • ·Treat the cause: thiamine 500 mg IV plus glucose for alcohol withdrawal; antibiotics (ceftriaxone plus vancomycin) for suspected meningitis; magnesium sulfate 4–6 g IV for eclampsia; correct electrolytes; load on chronic AED (phenytoin, levetiracetam, valproate); imaging (CT/MRI) for stroke or tumor
—
NCLEX trap
  • ·In status epilepticus (a seizure that will not stop), give a benzodiazepine (lorazepam 4 mg IV or midazolam 10 mg IM) at 5 minutes even if you don't know the cause yet. Stop the seizure first to protect the brain and airway. Then figure out why it started. Safety and breathing come before detective work.
  • ·One dose of benzodiazepine can stop the visible shaking, but status epilepticus (a seizure that will not stop) means the brain's electrical storm is still broken. You must give a second long-acting agent (fosphenytoin, levetiracetam, or valproate) around minute 20 to prevent the seizure from coming back. The shaking stopping does not mean the brain is healed.
  • ·Status epilepticus (a seizure that will not stop) is defined by time (seizure lasting more than 5 minutes) or pattern (back-to-back seizures without waking up between them). Always check: how long did it last, and did the patient wake up fully between episodes? A short single seizure that stops and lets the person wake up is not status epilepticus.
  • ·In the first 5 minutes: airway, oxygen, IV line, check blood sugar, give lorazepam. All four. Low blood sugar (hypoglycemia) can cause seizures that look just like status epilepticus (a seizure that will not stop), and giving glucose (one amp of D50 IV) takes 30 seconds and fixes it instantly. Do not miss this easy upstream fix.
  • ·Benzodiazepine at 5 minutes, second agent at 20 minutes, anesthetic with airway protection (intubation and propofol or midazolam drip) at 40 minutes if still seizing. Each step is timed by the Neurocritical Care Society protocol. If the first medicine does not work, move to the next step — do not keep repeating the same dose. Repeating only delays the real fix and lets status epilepticus (a seizure that will not stop) damage the brain longer.
  • ·Stop the seizure first to protect the brain and airway. Then always ask: why did status epilepticus (a seizure that will not stop) start? Common upstream causes include low anti-seizure drug levels (missed doses), low glucose, infection (meningitis, encephalitis, sepsis), stroke, low sodium, eclampsia in pregnancy, drug or alcohol withdrawal, brain tumor, or head injury. You must fix that upstream cause or the seizure will start again.
—

Educational use onlyThis system is for educational and clinical decision-support purposes only. It does not provide medical advice, diagnosis, or treatment. Crisis supportPrivacyTerms

Adapted with permission from the Clinical Reasoning Loop™, part of the Think Like a Provider™ Clinical Reasoning System by Jennawè Whitley, APRN, FNP-BC, NP-C. © Capital Covenant Enterprise LLC.

Install Maldek by Hill as an app — studies work even offline