What Is Non-Conformance Management in a Respiratory Lab (And Why Most Labs Are Doing It Wrong)
Non-conformance management is the structured process of identifying, documenting, investigating, and resolving deviations from defined quality standards within a laboratory setting [qi-a.com]. In a respiratory lab, this means capturing every instance where a test, process, piece of equipment, or result falls short of the expected standard, and then acting on it systematically. Done well, it protects patients, supports accreditation, and drives genuine continuous improvement. Done poorly, it becomes a paper exercise that creates compliance theatre without fixing anything.
TL;DR
Non-conformance management is a core requirement of ISO 15189 laboratory accreditation, not an optional extra.
Most respiratory labs fail not because they lack effort, but because they rely on disconnected, manual systems.
Effective non-conformance management requires clear documentation, root cause analysis, and closed-loop corrective and preventive actions.
A purpose-built laboratory quality management system transforms non-conformance from a burden into a quality driver.
Rezibase includes a dedicated accreditation module that covers non-conformance, audits, action plans, and quality control in one place.
About the Author: This article was written by the Rezibase team, respiratory scientists and healthcare technology specialists with over 37 years of experience building and supporting clinical physiology labs across Australia, New Zealand, the UK, and Ireland.
What Is Non-Conformance in a Respiratory Lab?
A non-conformance is any deviation from a defined process, procedure, specification, or expected result that fails to meet established requirements [confience.io]. In a respiratory lab context, this includes a wide range of events:
Equipment-related: A spirometer that fails its daily calibration check, or a body plethysmograph returning results outside acceptable control limits.
Process-related: A test performed outside the documented patient preparation protocol, or a report signed off without a required secondary review.
Result-related: An unexpected or physiologically implausible result that cannot be explained by the patient's clinical picture.
Documentation-related: Missing consent, incomplete test records, or an outdated standard operating procedure still in active use.
Non-conformances can arise during analyses and pose a genuine threat to product quality and patient safety if not managed properly [pharmaved.com]. In the laboratory, where clinical decisions are made based on reported values, an unresolved non-conformance is not just an administrative shortcoming, it is a clinical risk.
Why Is Non-Conformance Management Required for ISO 15189 Accreditation?
ISO 15189 is the international standard for medical laboratories, covering both competence and quality management. For any respiratory or sleep lab seeking accreditation through bodies such as NATA in Australia or UKAS in the UK, a functioning non-conformance management program is a mandatory requirement, not a suggested best practice.
A nonconforming laboratory event management program must be grounded in principles of quality management, risk management, and patient safety [clsi.org]. ISO 15189 specifically requires labs to:
Identify and document non-conformances promptly.
Evaluate the significance and potential impact of each event.
Take corrective action where the non-conformance has already occurred.
Take preventive action to eliminate the risk of recurrence.
Review the effectiveness of actions taken.
This closed-loop model, often referred to as corrective action preventive action (CAPA), is the backbone of any credible laboratory quality management system. Without it, accreditation bodies have no confidence that a lab learns from its mistakes.
Why Are Most Respiratory Labs Getting This Wrong?
The honest answer is that most labs understand what non-conformance management is in theory, but their systems for actually doing it are broken in practice. The most common failure modes are:
Problem | What It Looks Like | Why It Matters |
|---|---|---|
Siloed documentation | Non-conformances logged in spreadsheets or paper forms | Cannot be linked to CAPA, audits, or training records |
Incomplete root cause analysis | "Human error" listed as the cause, no deeper investigation | Same events recur because the system was never fixed |
No closed-loop tracking | Actions are assigned but never confirmed as complete | Accreditation auditors find open items from years prior |
Reactive-only culture | Non-conformances only logged after something goes wrong | Preventive action never occurs, risk accumulates |
Disconnected quality systems | Non-conformance tracked separately from QC, audits, and documents | No holistic view of lab performance |
The non-conformance management process is specifically designed to identify, investigate, and resolve deviations and document them in a structured report [complianceg.com]. When that process is fragmented across multiple tools or people, the structure collapses.
What Does a Good Non-Conformance Management Process Look Like?
An effective non-conformance management process follows a clear, repeatable sequence [snicsolutions.com][jjccgroup.org]:
Identify the deviation as soon as it occurs or is discovered.
Segregate and contain if the non-conformance involves a physical product or result that could cause harm if released.
Document the event in a formal non-conformance report, capturing what happened, when, where, who was involved, and the immediate impact.
Investigate using structured root cause analysis methods (such as the "5 Whys" or fishbone analysis) to understand the underlying cause, not just the surface symptom.
Define corrective actions targeting the root cause, with assigned owners and deadlines.
Define preventive actions to reduce the likelihood of similar events occurring elsewhere.
Verify effectiveness by reviewing whether the actions taken have actually resolved the problem.
Close the record only once evidence of effectiveness is confirmed.
This is not a bureaucratic checkbox exercise. Every step has a specific purpose, and skipping any one of them is what leads to recurring incidents and failed audits.
What Should You Look for in Non-Conformance Management Software?
A purpose-built non-conformance management software solution for a respiratory lab should do more than store incident records. The right lab compliance software should:
Link non-conformances directly to CAPA workflows.
Allow non-conformances to be linked to specific documents, procedures, or training records.
Generate a clear non-conformance reporting system with audit trail and version history.
Support trending and analysis so that recurring issues can be identified across time periods.
Integrate with broader quality functions such as internal audits, document control, and quality control data.
Be accessible across teams and sites without relying on local servers or manual file sharing.
The best lab management software for respiratory and sleep labs treats quality management as a connected system, not a collection of separate checklists.
How Does Rezibase Support Non-Conformance Management?
Rezibase includes a dedicated accreditation module built specifically to help respiratory and sleep labs meet TSANZ/NATA standards and ISO 15189 requirements. This module covers non-conformance management, action plans, internal audits, document control, staff training records, and quality control according to Westgard methods, all within a single cloud-based platform.
Because Rezibase was founded by respiratory scientists and is used by over 35 sites including NHS and NSW Health facilities, the non-conformance workflows reflect how real labs actually operate, not generic quality templates borrowed from manufacturing or pathology.
As lab quality control software and non-conformance corrective action tracking in one place, Rezibase removes the fragmentation that causes most labs to struggle. Non-conformances can be raised, investigated, linked to corrective and preventive actions, and closed with a complete audit trail, all without leaving the platform.
Frequently Asked Questions
What is non-conformance in simple terms?
A non-conformance is any event where a process, result, or product does not meet the defined standard or requirement [qi-a.com]. In a lab, it could be a failed calibration, a protocol deviation, or an unexpected test result.
Is non-conformance management required for ISO 15189 accreditation?
Yes. ISO 15189 requires documented processes for identifying, managing, and resolving non-conformances as part of a functional laboratory quality management system.
What is the difference between corrective action and preventive action?
Corrective action addresses a problem that has already occurred. Preventive action is taken to stop a similar problem from happening in the first place. Together, they form the CAPA framework central to ISO 15189 compliance.
How often should a respiratory lab review its non-conformances?
Best practice is to review open non-conformances at least monthly, with a broader trend analysis quarterly to identify recurring issues or systemic weaknesses.
Can a spreadsheet be used for non-conformance management?
It is technically possible but practically risky. Spreadsheets cannot enforce workflows, link to CAPA records, or provide a reliable audit trail. Accreditation auditors frequently flag spreadsheet-based systems as inadequate.
What makes a non-conformance report complete?
A complete report includes the event description, date and location, staff involved, immediate impact, root cause analysis, corrective and preventive actions defined, assigned owners, target dates, and evidence of effectiveness review [jjccgroup.org].
Does Rezibase work for both respiratory and sleep labs?
Yes. Rezibase is one of the few platforms that covers both respiratory and sleep reporting and quality management within a single vendor-neutral system.
About Rezibase
Rezibase is Australia's most advanced cloud-based respiratory and sleep reporting platform, developed by respiratory scientists for respiratory scientists. Trusted by over 35 sites across Australia and the UK including NHS and NSW Health, Rezibase covers the full clinical and quality management lifecycle, from patient referral and test reporting through to ISO 15189 accreditation support including non-conformance management, audits, document control, and quality control. With no vendor lock-in, no local servers to manage, and a transparent monthly pricing model, Rezibase is the platform of choice for respiratory and sleep labs that take quality seriously.
Ready to see how Rezibase handles non-conformance management in practice? Visit rezibase.com to book a demo or start your 30-day free trial.