What Counts as a Reportable Incident? A Nurse's Guide

“I Didn't Know I Had to Report That”

You're on a night shift. An infusion pump alarm keeps triggering incorrectly. You switch to a different pump, the patient is fine, and you move on. Nobody got hurt. Nothing to report. Right?

Wrong. Under the MDR, a device malfunction that could have led to a serious deterioration in health is reportable — even if, in this instance, it didn't. This is the single most misunderstood threshold in medical device incident reporting, and it leads to massive under-reporting across Irish hospitals.

The MDR Definition of a “Serious Incident”

MDR Article 2(65) defines a serious incident as any incident that directly or indirectly led, might have led, or might lead to any of the following:

Death of a patient, user, or other person
Serious deterioration in the state of health of a patient, user, or other person
A serious public health threat

The critical words are “might have led”. You do not need to prove harm occurred. You need to consider whether harm could have occurred in different circumstances — a different patient, a less experienced nurse, a higher dose, a longer delay before the alarm was noticed.

Key principle: Report the device behaviour, not the patient outcome.

If the device malfunctioned in a way that could have caused harm under different circumstances, it is reportable — regardless of whether this particular patient was actually harmed.

Common Incidents That Go Unreported

Based on patterns seen across Irish and EU hospitals, these are the types of incidents that are most frequently missed:

Infusion pump delivers an incorrect rate for 30 minutes before a nurse notices

Why it's reportable: Patient was on low-risk fluid — no harm this time. But the same malfunction on a high-alert medication could be fatal.

Patient monitor displays incorrect SpO2 readings intermittently

Why it's reportable: Staff learn to "work around" the faulty sensor. The manufacturer never gets the signal that there's a batch problem.

Surgical instrument breaks during a procedure — fragment retrieved

Why it's reportable: Surgeon handles it. No harm to patient. But a retained fragment in a different case could require re-operation.

Wheelchair brake fails — patient nearly falls during transfer

Why it's reportable: Near-miss. The "nearly" means no harm report is filed. But next time the patient may not be caught.

Thermometer gives readings 1.5°C higher than a reference device

Why it's reportable: Clinician notices and uses a different thermometer. But what if nobody had checked? Sepsis could be missed or unnecessary treatment started.

How to Report in Ireland

In Ireland, medical device incidents should be reported to the HPRA (Health Products Regulatory Authority). The reporting pathway for healthcare professionals:

Report internally through your hospital's local incident reporting system (NIMS in most HSE facilities)
Report to the HPRA via their online reporting portal
Preserve the device — do not dispose of it, clean it, or return it to service until the investigation is complete
Document what happened — time, date, what the device did, what you did, patient outcome

Reporting timelines under MDR Article 87:

Serious public health threat: Immediately, no later than 2 days
Death or unanticipated serious deterioration: No later than 10 days
Other serious incidents: No later than 15 days

These are manufacturer timelines, but hospitals should report to the HPRA as soon as reasonably practicable — ideally within 48 hours of becoming aware.

Why Under-Reporting Matters

Every unreported incident is a missed signal. Manufacturers rely on vigilance data to identify trends, batch problems, and design flaws. The HPRA relies on reports to trigger investigations and issue safety communications. When hospitals under-report, the system that protects patients cannot function.

The PIP breast implant scandal, the metal-on-metal hip implant crisis, and numerous infusion pump safety issues were all identified through vigilance reporting. Earlier reporting would have meant earlier detection and fewer patients affected.

Related Training

These modules cover incident reporting in depth:

HCW Responsibilities Module Post-Market Surveillance Module