GLI GLI Quality Tool
GLI Quality Tool — Version 2.0

Designing TB Laboratory Record Retention Schedules That Work

A clear record retention schedule helps a tuberculosis laboratory keep the evidence it needs, remove material it no longer needs, and find critical information during an investigation or accreditation assessment. It should cover paper files, electronic records, instrument output, quality documents, specimens, emails and scanned forms—not just formal reports.

For Australian laboratories, the schedule must fit public health obligations, NATA expectations, state and territory requirements, privacy controls and the practical realities of a large country. A metropolitan reference laboratory in Melbourne may have different access, storage and courier arrangements from a service supporting remote communities in the Northern Territory. The principles remain consistent: classify records carefully, assign defensible retention periods and make ownership clear.

Define The Purpose And Scope

Start by stating why the schedule exists. Its purpose may include supporting patient care, demonstrating test validity, meeting legal obligations, enabling outbreak investigations, preserving quality evidence and ensuring that records can be retrieved within an agreed timeframe. This statement prevents retention decisions being driven only by available cupboard space or server capacity.

Set the scope across the complete TB testing pathway. Include requests, specimen receipt, accessioning, microscopy, molecular testing, culture, identification, drug susceptibility testing, referrals, authorisations, result reporting, corrective actions and disposal. Quality management records should sit within the same framework, including audits, complaints, nonconformances, training evidence, equipment maintenance and management reviews.

The scope should also identify who owns each record class. A laboratory manager may own technical records, while the quality manager controls procedures and audit evidence. Information governance, pathology administration and the relevant state or territory health service may control patient information and archival decisions.

Classify Records By Risk And Use

A practical schedule groups records by their function rather than by the software or cupboard where they happen to be stored. This makes the scheme easier to apply when systems change. Useful categories include patient and test records, technical records, quality records, management records, staff records, equipment records, safety records and external communications.

Risk should influence the retention period. A final TB result linked to treatment and public health follow-up carries greater clinical and legal importance than a duplicate worksheet. A controlled SOP superseded last year may need a shorter active-use period but still requires evidence of approval, issue and withdrawal. Raw instrument files may be essential when a result is challenged, especially if they contain amplification curves, run controls or susceptibility data.

Consider the record’s future value as well as its immediate use. TB is a long-term public health concern, and an old result may become relevant during contact tracing, recurrent disease assessment, an adverse event review or a laboratory investigation. Australian services should also consider whether information must be shared across a hospital network, with a state reference laboratory or with national surveillance systems.

Set Retention Periods With Evidence

Do not assign one blanket period to every document. Build a retention rule for each record series, using applicable legislation, health service policy, accreditation requirements, contractual conditions and advice from the organisation’s records or legal team. Where requirements differ, use the longest defensible period until the conflict has been resolved.

Write retention periods in a way that staff can apply consistently. “Seven years after the last action” is clearer than “retain for seven years” when a record may remain active. Other triggers might include the patient’s last episode of care, the date a method was withdrawn, the end of an investigation, the finalisation of an audit or the expiry of a contract.

For high-risk or uncertain records, document the reason for the decision. A laboratory may retain selected validation data for the life of a method, while keeping routine daily worksheets for a defined period after result authorisation. The rationale should be reviewed with the quality manager and, where necessary, the pathology service’s information governance lead.

The GLI Quality Tool’s Phase 1 guidance can help a laboratory establish its quality management foundations before translating those principles into a controlled retention schedule. It is particularly useful when a service is formalising responsibilities, documentation and assessment processes.

Distinguish Controlled Documents From Records

A controlled document tells people how work should be done; a record shows what was done. This distinction is central to TB laboratory document control. An SOP, form template or policy may be revised and replaced, while a completed worksheet, signed review or authorised result becomes evidence of a specific activity.

Retain the current approved version where staff can access it, and preserve superseded versions according to the organisation’s document-control policy. Each obsolete version should show its approval date, effective period and withdrawal status. Keeping every informal draft can create confusion and increase the risk that staff rely on an unapproved method.

Completed records need their own retention logic. For example, a blank culture worksheet may be a controlled form, but the completed worksheet belongs with the associated testing record. Electronic laboratory information systems should preserve the final authorised result, relevant amendments, audit trails and the identity of users who entered or changed information.

When developing or reviewing instructions for liquid culture, use a resource such as this TB culture SOP guide to separate procedural content from the records generated while the procedure is performed.

Choose Storage And Access Controls

The schedule should specify where each record is stored, who may access it, how it is backed up and what happens if the primary system is unavailable. Electronic records need more than a folder name. Define naming conventions, metadata, version control, audit trails, permissions, backup frequency and restoration testing.

Patient information must be protected throughout its life. Use role-based access, secure transmission and documented approval for changes or exports. A shared drive containing scanned referral forms should not be treated like a public departmental folder. Paper records also need controlled cabinets, environmental protection and a sign-out process when files leave the laboratory.

Australian laboratories often operate across multiple sites, including public hospitals, private pathology providers and state reference services. The schedule should identify the authoritative copy when information exists in more than one system. It should also state how records are transferred during a laboratory move, a vendor change or a merger between health services.

Remote and regional services may rely on intermittent connectivity, couriered paperwork or local temporary logs. Build a process for synchronising those records with the main system, checking for missing pages and documenting delayed entry. A temporary paper log is still a regulated record if it supports a patient result or a safety decision.

Manage Holds, Privacy And Disposal

Routine destruction must stop when a record is subject to a legal hold, complaint, investigation, audit, freedom of information request, coronial matter or reasonably anticipated litigation. The hold should be documented, communicated to affected staff and removed only by an authorised person. The retention schedule should explain this exception in plain language.

Disposal must be secure and traceable. Shredding, approved confidential destruction, secure deletion and media destruction may all be appropriate, depending on the format and sensitivity of the information. Simply placing old worksheets in a recycling bin or deleting a shared-drive shortcut does not demonstrate proper disposal.

Keep a destruction register for significant record classes. It can include the record series, date range, disposal authority, method, approving officer and date of destruction. If a record is transferred to an archive rather than destroyed, document the destination and access conditions.

Specimen retention needs a separate decision from document retention. Sputum, cultures, isolates and extracted material may have different scientific, clinical and biosecurity value. The schedule should cross-reference specimen policies and clarify when a sample is retained for referral, proficiency testing, research, confirmation or public health purposes.

Make The Schedule Easy To Use

A schedule is effective only when staff can apply it during a busy shift. Use a table or controlled register with one row per record series. Keep descriptions concrete: “authorised molecular TB result and amendment history” is more useful than “test documentation”. Include the system or location, owner, retention trigger, retention period, access level and disposal method.

Train staff at induction and when the schedule changes. Supervisors can reinforce it through internal audits, spot checks and document review. If people repeatedly save duplicate files in personal folders or cannot identify the official copy, the problem is usually unclear ownership or an impractical process rather than careless behaviour.

Practical Schedule Checks

Use these record groups when checking coverage:

Include these fields in the schedule:

Review The Schedule As Services Change

Retention decisions should be reviewed when the laboratory introduces a new assay, replaces its LIMS, changes a referral pathway or adopts a new document management platform. A new molecular platform may generate raw files and quality metrics that did not exist under an older method. The schedule must evolve with the evidence produced by the service.

Include retention review in the quality improvement calendar. Internal audits can test whether records are complete, retrievable, protected and disposed of correctly. Management review can then consider recurring gaps, storage costs, access delays and changes in legislation or health service policy.

For Australian services, involve the relevant state or territory records authority, pathology governance team and privacy advisers where appropriate. National reference laboratories and networks may also have specific expectations for referred isolates, proficiency testing or surveillance data. NATA assessment findings can provide useful evidence about whether document control and record management work in practice.

A short annual review is usually more useful than waiting for a major failure. Confirm that every active record series has an owner, each retention period has a reason, disposal is authorised and staff understand the difference between a controlled document and a completed record.

Adopt the schedule as a controlled quality document, train the people who create and manage TB records, and test retrieval before the need becomes urgent. A well-maintained schedule will strengthen patient care, audit readiness and public health response across the laboratory network.