Laboratory Medicine


The Accreditation Standards – Laboratory Medicine document has been reviewed and accredited by the International Society for Quality in Health Care External Evaluation Association (IEEA).


Medical laboratories in the province are required to participate in proficiency testing (PT) programs and alternative assessment procedures that reflect their range of accredited services. The DAP maintains its own records of laboratory PT performance, including the outcomes of investigations and subsequent corrective actions. PT performance history will be a factor considered when determining the overall accreditation award. Medical laboratories are required to investigate and comment on unacceptable performance in writing to the DAP within a designated time-frame. Corrective actions that are initiated by the laboratory require monitoring to ensure they are effective. 

What is proficiency testing?

Proficiency testing (PT) is an evaluation of participant performance against pre-established criteria by means of interlaboratory comparison. A PT program is a quality assessment tool that provides a retrospective measure of technical quality. To be most effective, PT must be used in conjunction with the laboratory’s internal quality control program and be a part of the quality management system. The objectives of the PT program for the DAP are to:

  • provide objective evidence of laboratory competence through continual monitoring
  • identify trends in acceptable PT results and flag unacceptable PT results requiring investigation
  • monitor the outcomes of investigations and subsequent corrective actions
  • provide laboratories the opportunity to identify issues related to systemic error, imprecision, or human error; potentially unrecognized issues if PT is not fully incorporated into the quality management system
  • consider laboratory PT performance during the assessment and accreditation process using a combination of data collected through the PT monitoring process and evidence provided during onsite assessment

For facilities undergoing DAP ISO 15189 accreditation

All facilities receiving DAP ISO 15189 accreditation must proceed through the mid-cycle accreditation process.

For new laboratory medicine facilities

All new facilities and services within an already accredited facility must proceed through the initial assessment process prior to service delivery or patient examinations.

For facilities undergoing significant change in service

An existing accredited facility must report any significant change in service related to: extensive renovation, examination methodology, leadership, scope of testing and staffing model. Reporting occurs by completing and submitting the following form.

For relocating laboratory medicine facilities

All facilities relocating to a new address or within their existing building must proceed through the relocation assessment process prior to service delivery or patient testing. Please note that the DAP is currently in the process of developing relocation accreditation standards.

For service cessation or facility closure

Facilities discontinuing an accredited service or closing completely must provide written communication in the form of a signed letter from the medical director confirming service cessation or facility closure and the effective date. Submit the written communication by email to

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