MCCQE Part I study materials
MCCQE Part I study resources

The Handover That Lost the Allergic Reaction

MCCQE Part I · Put your knowledge to work in context.

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The Handover That Lost the Allergic Reaction

You are the resident on a busy internal medicine ward at 07:45. Overnight, a 72-year-old man with community-acquired pneumonia was started on IV ceftriaxone. At 03:00 he developed urticaria and wheeze; the night resident gave diphenhydramine and salbutamol and noted "mild reaction, monitor" in the chart. The night resident has now left. The chart's allergy section still reads "NKDA." The day nurse is about to give the 08:00 ceftriaxone dose. The patient's daughter, a nurse herself, is at the bedside and says, "That's the drug that caused the reaction - why is it still ordered?"

1. What are the immediate patient-safety actions, and who needs to be involved?

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Stop and correct the system before the next dose.

  1. Hold the 08:00 ceftriaxone - tell the nurse directly and document the hold.
  2. Update the allergy record to reflect the documented reaction (ceftriaxone - urticaria and wheeze, timing). This is the single highest-yield action because it prevents every future order.
  3. Assess the patient now: vitals, airway, work of breathing, skin, and whether the reaction is ongoing or resolved. Have epinephrine and airway equipment available.
  4. Notify the prescriber and choose an alternative antibiotic based on the pneumonia severity and local resistance; document the rationale.
  5. File an incident/safety report - the failure was not the reaction, it was the handover and allergy documentation gap.
  6. Close the loop with the daughter: thank her, confirm the drug is held, and explain the plan. She is a collaborator, not an obstacle.

Key: the error is a process failure (reaction documented in notes but not in the allergy field, and not handed over), so the fix must be at the process level, not just the individual order.

2. How do you structure the handover and communication to prevent recurrence?

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Use a structured handover and a clear escalation norm.

  • Handover content (SBAR-style): Situation (reaction at 03:00), Background (CAP, day 1 ceftriaxone), Assessment (urticaria + wheeze, treated, now stable), Recommendation (antibiotic to be changed, allergy field updated, monitor).
  • Make allergy status a mandatory handover field - read it aloud at every handover, like vital signs.
  • Speak-up culture: the daughter's challenge should be treated as a gift. Tell the team explicitly: "Anyone who sees a drug given to a patient with a documented reaction should stop the dose and call me - no hierarchy."
  • Debrief the night resident (non-punitive) to understand why the allergy field was not updated - was it time pressure, unclear workflow, or a system that makes it hard to edit?
  • Document the incident, the corrective actions, and the patient/family communication.

Key: handover is a clinical intervention. A reaction that is treated but not transmitted is a reaction waiting to happen again.