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Difficulty: HardMedical Errors and Malpractice

A 72-year-old man is admitted to the hospital with a severe exacerbation of chronic obstructive pulmonary disease. He has a history of moderate Alzheimer dementia and permanent atrial fibrillation. His daughter accompanies him and provides documentation establishing her as his legally appointed healthcare proxy due to his lack of clinical decision-making capacity.

During admission, a resident physician inadvertently prescribes the patient's home warfarin at 10 mg daily instead of the correct 1 mg daily dose. The hospital's electronic health record fails to generate a dose-warning alert. Over the next three days, the patient receives the incorrect dose.

On hospital day 4, the attending physician discovers the prescribing error. The patient's INR is 7.5. He has no evidence of bleeding, and his neurological exam remains at his baseline. Warfarin is withheld, oral vitamin K is administered, and the INR normalizes within 24 hours without any adverse clinical consequences.

The attending physician prepares to address this event. Which of the following is the most appropriate course of action?

  1. Disclose the dosing error to the patient's daughter, explain the corrective clinical measures taken, and commit to a systemic investigation of the event.Answer
  2. B
    Disclose the medication error exclusively to the patient himself rather than his daughter, as he has not been declared legally incompetent by a court of law.
  3. C
    Inform the daughter that the supratherapeutic INR was an unavoidable adverse event caused by a pharmacokinetic interaction between warfarin and his acute COPD therapies.
  4. D
    Apologize to the daughter for administering warfarin, as therapeutic anticoagulation is absolutely contraindicated during the acute phase of a respiratory exacerbation.
  5. E
    Disclose the error to the daughter and conclude the root cause analysis by formally documenting the resident's negligence as the sole etiology of the event.

Answer

Disclose the dosing error to the patient's daughter, explain the corrective clinical measures taken, and commit to a systemic investigation of the event.
The correct action is to provide full, honest disclosure to the patient's authorized surrogate. Even though the patient did not suffer permanent harm (a concept sometimes referred to as a mitigated error or reversible harm), the error reached the patient and altered his clinical course (requiring Vitamin K and extra monitoring). Professional ethics dictate that the physician must explain what happened, apologize, describe how the immediate clinical threat is being managed, and explain that the hospital will investigate the systemic causes (Root Cause Analysis) to ensure it does not happen again.

Step-by-Step Solution

1
Identify the nature of the event.
A 10-fold medication dosing error occurred and reached the patient, resulting in a critically elevated INR (7.5), though permanent harm was averted with Vitamin K.
Determining whether an error reached the patient and caused harm dictates the ethical obligation for disclosure.
2
Determine the appropriate recipient for the disclosure.
The disclosure must be made to the patient's daughter.
The patient lacks clinical decision-making capacity due to moderate Alzheimer dementia, making his designated healthcare proxy the legal and ethical surrogate for all medical communications.
3
Select the communication approach that aligns with USMLE ethical standards for medical errors.
Full, transparent disclosure taking institutional responsibility.
Ethical standards require admitting the mistake, outlining corrective clinical actions, offering an apology, and initiating a systems-based Root Cause Analysis (RCA) without blaming individuals or inventing alternative medical excuses.

Key Concept

Physicians must transparently disclose medical errors to patients or their surrogates, even if irreversible harm was avoided, and must utilize systems-based practice (Root Cause Analysis) to identify latent institutional failures rather than solely blaming individual practitioners.
Estimated Time:1m 30s
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Medical Errors and Malpractice

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