A 28-year-old woman on the unit suddenly loses consciousness, becomes rigid throughout her body, and is observed to have rhythmic jerking of her arms and legs. Which action should the nurse take FIRST?

During a seizure, the priority nursing intervention follows the ABC (airway, breathing, circulation) principle: maintain a patent airway and provide oxygen. Because secretions around the mouth place the client at risk for airway obstruction, the airway must be secured immediately. Anticonvulsant administration is considered when a seizure lasts longer than 5 minutes or recurs without a return to consciousness; at 2 minutes, airway management takes priority over medication.

The top priority in seizure care is securing the airway and providing oxygen

When a seizure occurs, abnormal excessive neuronal activity in the brain temporarily disrupts consciousness, motor function, sensation, and autonomic function^[1]. This client is demonstrating a generalized tonic-clonic seizure, in which a tonic phase of whole-body rigidity is followed sequentially by a clonic phase of rhythmic jerking of the extremities. During a seizure, the greatest risk is hypoxia resulting from biting the tongue during masseter spasm, or from airway obstruction caused by rigidity of the respiratory muscles and excessive secretions. The frothy secretions around the mouth and the upward deviation of the eyes are important clinical signs pointing to this risk of airway obstruction.

Nurses play a decisive role in recognizing and managing seizures, and this role includes airway management, hemodynamic monitoring, and safe administration of anticonvulsants^[1]. However, all of these interventions are meaningful only on the premise that ventilation is maintained. Because the tongue can fall back or secretions can occlude the airway during a seizure, opening the airway and delivering oxygen first is the initial life-preserving step. At 2 minutes into the seizure, most seizures still have a good chance of stopping spontaneously within 5 minutes, but secondary brain injury from hypoxia must be prevented in the meantime.

Option 1, administering lorazepam, is a pharmacologic intervention to consider when the seizure progresses to status epilepticus, lasting longer than 5 minutes. Option 3, establishing IV access, is also needed for medication administration, but it is not the priority to rush toward while the airway remains unsecured. Option 4, holding down the extremities, must always be avoided because it can cause muscular or skeletal injury. Option 5, documenting seizure characteristics, is an important nursing responsibility to carry out after the seizure ends or once the airway and oxygenation have been addressed.

The essence of nursing care for a client having a seizure is "protect the airway and provide oxygen," and this is the emergency management principle emphasized as the highest priority even in high-fidelity simulation-based education^[1].