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Physiological AdaptationInduced seizure for severe depression

Electroconvulsive TherapyNCLEX cheat sheet

Electroconvulsive therapy passes a controlled electrical current through the brain to induce a brief generalized seizure, and it is most effective for severe, treatment-resistant major depression, especially with suicidal ideation or catatonia.

17 key facts 3 practice questions Reviewed Oct 2026
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Uses

  • Severe/refractory depression, suicidal
  • Catatonia, mania, psychosis

Pre

  • Informed consent, NPO after midnight
  • Atropine ↓secretions, void first
  • Anesthesia + succinylcholine (muscle relax)

Post

  • Side-lying, airway, VS q15min
  • Expect confusion, transient memory loss
  • Reorient, supervise, headache common

Report

  • Prolonged apnea, aspiration
  • Dysrhythmia, ↑ICP signs
Red flag to remember

Report prolonged apnea, respiratory depression, or unstable vital signs after anesthesia.

Before you read

Test yourself first: 3 questions

Question 1 of 3

A client receiving chemotherapy reports painful mouth sores. On inspection, the nurse notes erythema and ulcerations of the oral mucosa. Which intervention is most appropriate for this client's stomatitis?

What is electroconvulsive therapy?

It works faster than antidepressants and is given under general anesthesia with a muscle relaxant. The most common adverse effects are transient confusion and short-term memory loss.

Electroconvulsive Therapy illustrated

Electroconvulsive Therapy — medical illustration
Electroconvulsive Therapy — medical illustration. Illustration: BruceBlaus via Wikimedia Commons, CC BY-SA 4.0.

Key points to remember

  • ECT is first-line for severe depression unresponsive to medication or when a rapid response is needed (acute suicidality, refusal to eat, catatonia).
  • Treatments are usually given 2-3 times per week for a total of about 6-12 sessions.
  • General anesthesia plus a muscle relaxant (succinylcholine) prevents injury during the induced seizure; atropine may reduce secretions.
  • Temporary confusion and short-term/retrograde memory loss are expected and typically resolve over weeks.
  • Pre-procedure care mirrors surgery: NPO after midnight, informed consent, baseline vitals, void before, and remove dentures, jewelry, and hairpins.
  • After ECT the client is monitored like a post-anesthesia patient and reoriented frequently as they wake confused.

Nursing priorities

  1. Verify informed consent and that the client is NPO before the procedure.
  2. Take baseline vital signs, have the client void, and remove dentures, glasses, jewelry, and hairpins.
  3. Maintain a patent airway and monitor vitals and oxygenation during recovery.
  4. Reorient the client frequently and stay with them until oriented and stable.
  5. Institute safety/fall precautions due to post-treatment confusion.

Patient teaching

  • Short-term memory loss and confusion around the treatment period are common and usually temporary.
  • Do not drive or make important decisions on treatment days; arrange a ride and a support person.
  • Report worsening mood or thoughts of self-harm between treatments.

Red flags: report now

  • Report prolonged apnea, respiratory depression, or unstable vital signs after anesthesia.
  • Report persistent or worsening confusion, prolonged seizure activity, or new neurologic deficits.
  • Do not leave a confused, recovering client unattended (fall and injury risk).

References

Clinical references for this topic

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