A 15-year-old girl is brought to the emergency department by her school counselor. The cou… — USMLE Step 2 CK

A 15-year-old girl is brought to the emergency department by her school counselor. The counselor reports that the patient confessed to taking "a whole bottle" of her mother's amitriptyline an hour ago in a suicide attempt. On physical examination, the patient is lethargic but arousable. Temperature is 38.2°C (100.8°F), blood pressure is 92/60 mm Hg, pulse is 125/min, and respirations are 14/min. Her pupils are dilated, and her skin is flushed and dry. An electrocardiogram shows sinus tachycardia with a QRS complex duration of 145 ms. When the physician informs the patient that she requires an intravenous medication, she becomes agitated and refuses. She states, "I just want to die. If you call my mother or step-father, he will beat me again. Please just let me be." Which of the following is the most appropriate next step in management?

Administer intravenous sodium bicarbonate and notify Child Protective ServicesAnswer
B
Administer intravenous sodium bicarbonate and contact the parents to obtain consent for psychiatric admission
C
Administer intravenous physostigmine and notify Child Protective Services
D
Delay pharmacological intervention until an emergency court order for involuntary treatment can be obtained
E
Respect the patient's refusal of medical care and arrange for an emergent bedside psychiatric evaluation

Answer

Administer intravenous sodium bicarbonate and notify Child Protective Services

The correct response involves two critical steps: administering intravenous sodium bicarbonate and notifying Child Protective Services (CPS). Medically, the patient is suffering from severe tricyclic antidepressant (TCA) toxicity. Her QRS duration of 145 ms (normal < 100 ms) places her at imminent risk for lethal ventricular arrhythmias, making sodium bicarbonate the definitive life-saving therapy. Legally and ethically, the patient lacks decision-making capacity because she is a minor, intoxicated, and actively suicidal. Under the doctrine of implied consent, emergency life-saving interventions must be provided regardless of her refusal. Although parental consent is usually required for minors, the patient's disclosure of physical abuse by her step-father overrides this requirement. Physicians are mandatory reporters and must notify CPS. Contacting the parents is strictly contraindicated, as it would place the minor in immediate danger.

Step-by-Step Solution

Diagnose the medical emergency based on the clinical presentation.

The patient has tricyclic antidepressant (TCA) toxicity, evidenced by amitriptyline ingestion, anticholinergic signs (fever, tachycardia, dilated pupils, flushed skin), and cardiotoxicity (QRS > 100 ms).

Accurate diagnosis dictates the specific life-saving medical intervention required, which is intravenous sodium bicarbonate to reverse QRS widening and prevent fatal arrhythmias.

Determine the patient's capacity to refuse treatment.

The patient lacks capacity to refuse care.

She is a minor, is under the influence of a toxic ingestion, and is actively suicidal. Her refusal is a direct manifestation of her psychiatric emergency.

Determine the legal basis for providing care despite the patient's refusal.

Treatment must be provided under the doctrine of implied consent.

In a life-threatening emergency where a patient lacks capacity, physicians are legally and ethically obligated to provide necessary life-saving care without waiting for formal consent.

Identify the appropriate legal reporting requirement regarding the suspected abuse.

Child Protective Services (CPS) must be notified immediately, and the parents should not be contacted.

While parental consent is typically required for treating minors, mandatory reporting laws dictate that suspected child abuse must be reported to CPS. Notifying the suspected abusers (the parents) is contraindicated as it places the child at serious risk of harm.

Key Concept

In life-threatening medical emergencies involving minors who lack capacity (e.g., active suicidality), life-saving treatment must be administered under implied consent. If child abuse is suspected, physicians must report to Child Protective Services and withhold parental notification to protect the minor.

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

Topics

More questions from this topic