A 24-year-old patient is brought to the ED with a generalized tonic-clonic seizure that has been ongoing for 6 minutes. Airway is patent, oxygen saturation 92% on a non-rebreather mask, IV access is established. Which is the nurse's priority intervention now?

A generalized convulsive seizure lasting 5 minutes or more is treated as status epilepticus, an emergency that requires immediate first-line therapy with a benzodiazepine — IV lorazepam (or IV/IM midazolam if no IV access). Concurrently the team maintains airway, oxygen, and IV access. If seizures continue, a second-line agent (fosphenytoin, levetiracetam, or valproate) is given. Choice 1 is unsafe — never insert objects into a seizing patient's mouth, and physical restraint can cause injury. Choice 3 misses the 5-minute treatment threshold; the longer status persists, the more refractory it becomes. Choice 4 — dextrose is given empirically only when hypoglycemia is suspected (low fingerstick or unknown cause) and is not the priority over benzodiazepine; phenobarbital is third-line.

In-depth explanation

Status epilepticus is now defined as continuous seizure activity lasting 5 minutes or more, or two or more seizures without recovery between them. The 5-minute threshold replaces the older 30-minute definition because longer seizures are more refractory and produce more neuronal injury. The treatment ladder begins with first-line IV lorazepam 0.1 mg/kg up to 4 mg, IV diazepam, or IM midazolam if no IV access. Second-line agents are IV fosphenytoin, levetiracetam, or valproate. Third-line is phenobarbital. Refractory status epilepticus requires continuous infusion of midazolam, propofol, or pentobarbital under continuous EEG. Seizure-safety don'ts: do NOT insert objects between the teeth, which causes dental, tongue, and jaw injury, and do NOT physically restrain limbs, which causes fractures and rhabdomyolysis. Do protect the head, turn the patient on the side as the convulsion ends, monitor airway and oxygen, time the seizure, and document.

Clinical scenario

<p>A <strong>24-year-old patient</strong> presents to the ED with a <strong>generalized tonic-clonic seizure ongoing for 6 minutes</strong>. <strong>Airway patent</strong>, <strong>SpO2 92% on non-rebreather</strong>, <strong>IV access established</strong>.</p>

Key concepts

• Status Epilepticus — Defined as ≥5 minutes of continuous seizure activity or ≥2 seizures without recovery between them. The 5-minute threshold replaces older 30-minute definitions because longer seizures are more refractory and produce more neuronal injury. First-line treatment is IV/IM benzodiazepine.
• Status Epilepticus Treatment Ladder — First-line: IV lorazepam 0.1 mg/kg up to 4 mg, IV diazepam, or IM midazolam if no IV. Second-line: IV fosphenytoin, levetiracetam, or valproate. Third-line: phenobarbital. Refractory: continuous infusion of midazolam, propofol, or pentobarbital under continuous EEG.
• Seizure Safety Don'ts — Do NOT insert objects between the teeth (causes dental, tongue, jaw injury). Do NOT physically restrain limbs (causes fractures and rhabdomyolysis). Do protect the head, turn the patient on the side as the convulsion ends, monitor airway and oxygen, time the seizure, and document.