Laboratory deviation investigation process flowchart

What the laboratory deviation investigation process is

The workflow begins by securing the area, evidence and deviation record, then asks whether immediate containment is actually effective. If it is not, the process calls for stronger control and notification before the investigation moves into chronology and evidence.

A cause hypothesis is not treated as a conclusion until evidence supports it. When the cause remains uncertain, the investigation lead can extend the review or involve specialists before impact and follow-up actions are assessed.

Adapt containment measures, investigation methods, impact criteria and escalation routes to the laboratory's activities and risk controls. This editable chart does not prescribe a universal investigation depth or closure threshold.

What this flowchart covers

In this template

• A reporter secures the deviation record and affected evidence before investigation work begins.
• An ineffective containment decision leads to additional controls and notification.
• The investigation lead gathers chronology and tests whether a cause hypothesis is supported.
• Quality connects impact assessment to CAPA, escalation or an approved investigation summary.

When to use this template

• You need an editable process for a laboratory departure from an approved procedure, condition or expected activity.
• Teams need to distinguish immediate containment from the later evidence-based assessment of cause and impact.
• You want uncertain causes and additional specialist review to remain visible rather than being forced into a premature conclusion.

How it works

1. Define deviation triggers

   Replace the opening event with the observations, records or notifications that start a deviation at your site, including who can make the initial report.

2. Set evidence roles

   Identify who secures records, who leads interviews or technical review, and when a specialist must be involved before a cause conclusion is accepted.

3. Connect follow-up routes

   Link the CAPA and escalation boxes to the local systems that own those actions, so the investigation summary does not become the final record by itself.

Frequently asked questions

What does a laboratory deviation investigation process cover?

It covers reporting and containment, evidence gathering, assessment of a cause hypothesis, impact review, assignment of CAPA or escalation follow-up where needed, and an approved summary record.

Why test whether containment is effective?

An initial action may not fully control affected work, evidence or recurrence risk. The decision creates an explicit route to strengthen controls before the team relies on later investigation steps.

What if the cause remains uncertain?

Extend the evidence review, involve suitable expertise and document what is known. The appropriate next step depends on the event and local process; an unsupported cause should not be recorded as confirmed.