T43.012

Clinical Causes: Intentional overdose of prescribed tricyclic antidepressants as a form of self-harm Mental health conditions such as depression or suicidal ideation leading to deliberate misuse Accidental ingestion, though less common in this context, especially when quantities are large Misunderstanding or accidental confusion over medication doses

Key Symptoms: Cardiac issues such as irregular heartbeat, tachycardia, or arrhythmias Central nervous system effects including confusion, drowsiness, dizziness, and seizures Gastrointestinal symptoms like nausea, vomiting, and abdominal pain Respiratory depression in severe cases Dilated pupils and dry mouth Possible unconsciousness or coma in severe poisoning

Diagnosis Path: Diagnosis involves reviewing the patient's medical history, including recent medication use and intent, alongside physical examinations and laboratory tests. Blood tests can confirm elevated levels of tricyclic antidepressants and screen for metabolic imbalances. An electrocardiogram (ECG) is often performed to detect cardiac irregularities related to TCA toxicity. Mental health assessments may also be conducted to understand the patient's psychological state and potential risk factors for self-harm.

Treatment Protocols: Treatment for TCA poisoning focuses on stabilizing the patient and preventing severe complications. Common interventions include: - Immediate medical attention in a hospital setting - Gastric decontamination methods such as activated charcoal administration to limit further absorption of the drug - Supportive care to maintain airway, breathing, and circulation - Use of intravenous fluids to support blood pressure - ECG monitoring and interventions for arrhythmias - Administration of sodium bicarbonate to counteract cardiac toxicity - Seizure management with appropriate medications if needed - Continuous psychiatric evaluation and mental health support to address underlying issues and prevent recurrence In severe cases, advanced therapies such as hemodialysis may be considered, although their effectiveness can be limited. Each treatment plan should be tailored to the individual’s specific condition and needs.