LabQMHub Editorial Team · ISO 15189:2022 Quality Management Series
These three principles rarely generate headlines the way a new analyzer or a breakthrough test might, but their absence is exactly what erodes public and clinical trust in laboratory medicine over time. A laboratory can have flawless analytical performance and still fail its patients if results are influenced by financial pressure, if confidential health information leaks, or if the patient experience is treated as an administrative afterthought rather than a genuine care encounter.
Impartiality: Protecting the Integrity of the Result
Impartiality means laboratory activities are undertaken objectively, free from undue commercial, financial, or other pressures that could compromise judgment. This matters most acutely where a laboratory has financial relationships with referring clinicians, pharmaceutical companies, or parent organizations that could create — even unintentionally — pressure to favor certain outcomes, test volumes, or interpretations over strict scientific accuracy.
ISO 15189:2022 requires laboratories to identify risks to impartiality on an ongoing basis, not as a one-time exercise performed only before an accreditation visit, and to demonstrate how those risks are managed or eliminated. This connects directly to governance structures covered later in the standard: a laboratory director with genuine authority over technical decisions, insulated from inappropriate commercial pressure, is the practical mechanism through which impartiality is protected day to day.
Confidentiality: The Laboratory’s Duty to Protect Patient Information
Laboratories handle some of the most sensitive information that exists about a person — diagnoses, genetic predispositions, infectious disease status, reproductive health data, and mental health indicators. Confidentiality requirements under ISO 15189:2022 obligate the laboratory to protect this information at every point it is handled: collection, transport, testing, reporting, storage, and eventual disposal, with no gap in the chain of custody where sensitive data could be exposed.
This extends beyond simple staff discretion into information security policy, access control, staff training, and clear rules for when and how information can be disclosed to third parties — a requirement that increasingly intersects with data protection regulations such as HIPAA in the United States or GDPR in Europe, making laboratory confidentiality both an ethical commitment and a hard legal obligation with real regulatory consequences for failure.
Patient-Centred Care: The Person Behind the Specimen
Requirements regarding patients push laboratories to consider the human experience of being tested — clear communication, respect for informed consent, appropriate handling of vulnerable populations such as children or anxious patients, and processes designed around patient needs rather than only laboratory convenience or throughput targets. This is a deliberate shift in emphasis: a laboratory is not merely a testing facility but an active participant in a patient’s broader care journey.
Practical patient-centred care includes accessible collection procedures, transparent communication about what a test involves and why it was ordered, appropriate escort and comfort measures for anxious or vulnerable patients, and processes that respect a patient’s right to information about their own results, consistent with the complaints and customer service principles covered later in this program.
How These Principles Show Up in Everyday Laboratory Operations
In practice, impartiality is enforced through documented conflict-of-interest declarations, periodic review of financial relationships, and a technical decision chain that cannot be overridden by sales or referral considerations. Confidentiality is enforced through role-based system access, encrypted transmission of results, locked physical storage for paper records, and staff confidentiality agreements renewed on a defined cycle rather than signed once and forgotten.
Patient-centred care is enforced through collection-area design, staff communication training, informed-consent documentation for procedures requiring it, and feedback mechanisms that let patients flag where their experience fell short. None of these are abstract ideals — each has a concrete, auditable operational expression that an assessor, and more importantly a patient, can actually observe.
Frequently Asked Questions
What counts as a conflict of interest for a medical laboratory?
Any financial, commercial, or organizational relationship that could reasonably be perceived to influence a laboratory’s technical judgment or reported results — for example, ownership stakes tied to test volume, or referral incentives from testing partners.
Does patient-centred care apply to laboratories that never meet patients face-to-face?
Yes. Even laboratories operating largely behind the scenes are expected to design processes — turnaround time, result clarity, complaint handling — around genuine patient needs, not only operational convenience.
What is the difference between confidentiality and data security?
Confidentiality is the ethical and procedural commitment to protect patient information from inappropriate disclosure; data security is the technical means (access control, encryption) used to enforce that commitment in practice.
Key Takeaways
- Clause 4 of ISO 15189:2022 establishes impartiality, confidentiality, and patient-centred care as foundational general requirements, ahead of any technical clause.
- Impartiality requires laboratories to actively identify and manage risks from financial or commercial pressure that could influence results or judgment.
- Confidentiality obligations cover the entire information lifecycle, from collection through disposal, and increasingly intersect with data protection law such as HIPAA and GDPR.
- Patient-centred care reframes the laboratory’s role from a testing facility to an active participant in the patient’s care experience.
- Each principle has a concrete, operational expression — conflict-of-interest declarations, access controls, and collection-area design — not just a policy statement.
- These principles are ethical commitments enforced through governance structures, policies, and staff training covered throughout the rest of the standard.
Conclusion
Impartiality, confidentiality, and patient-centred care are not soft, secondary concerns in laboratory medicine — they are the ethical bedrock that makes every subsequent technical requirement meaningful. A laboratory that gets its analytical processes right but neglects these principles has not built a trustworthy quality management system, no matter how sophisticated its instrumentation.
As laboratories work toward ISO 15189:2022 accreditation, these general requirements deserve the same rigor applied to equipment calibration or method validation: documented policies, active risk identification, and genuine staff understanding of why they matter — not just for the assessor, but for every patient the laboratory serves.
Explore the full ISO 15189:2022 training series to see how impartiality, confidentiality, and patient-centred care connect to governance, complaints handling, and every other requirement of the standard.
Source note: this article draws on “Quality Management in Clinical Laboratory Demystified” by Dr. Taleb Chalab Cham, ISO 15189:2022, and widely recognized clinical laboratory quality references including CLSI guidelines, CAP accreditation checklists, and WHO laboratory quality guidance.
