US · guidance
CMS SOM App. C, Tag D5391
§493.1249 Standard: Preanalytic systems quality assessment
(a) The laboratory must establish and follow written policies and procedures for an
ongoing mechanism to monitor, assess, and when indicated, correct problems
identified in the preanalytic systems specified at §§493.1241 through 493.1242.
Interpretive Guidelines §493.1249(a)-(c)
Quality Assessment (QA) is an ongoing review process that encompasses all facets of the
laboratory’s technical and non-technical functions and all locations/sites where testing is
performed. QA also extends to the laboratory’s interactions with and responsibilities to
patients, physicians, other laboratories ordering tests, and the other non-laboratory areas
of the facility of which it is a part.
When the laboratory discovers an error or identifies a potential problem, actions must be
taken to correct the situation. This correction process involves investigation,
identification, and resolution of the problem, followed by development of policies that
will prevent recurrence.
The laboratory should:
• Establish and/or revise written policies and procedures to prevent recurrence of
the problems identified;
• Communicate the established and/or revised policies to the laboratory personnel
and other staff, clients, etc., as appropriate; and
• Document that the established and/or revised policies and procedures to prevent
recurrence have been followed.
Over time, the laboratory must document monitoring of the corrective action(s) to ensure
the action(s) taken have prevented recurrence of the original problem.
All pertinent laboratory staff must be involved in the assessment process through
discussions or active participation.
QA of the Preanalytic System includes assessing practices/issues related to test requests,
specimen submission, handling and referral.
Some examples include: monitoring the frequency of specimen handling problems (such
as the use of an improper blood collection tube, inadequate mixing of blood specimens
with anticoagulant after collection), and delays in specimen transport; identifying clients
who repeatedly refer unacceptable specimens or improperly complete requisition forms
and documentation of the laboratory’s efforts to reduce the recurrence of these problems.
Review assessment policies, procedures and reports to verify that the laboratory has a
system in place to ensure continuous improvement. Corrective action reports are one
indication that the laboratory is monitoring and evaluating laboratory performance and
the quality of services.
Probes §493.1249(a)-(c)
When a laboratory uses off-site drawing facilities, what policies or procedures does the
laboratory use to ensure proper accountability or tracking of patient specimens from the
time of collection to receipt by the laboratory performing the tests?
Does the laboratory routinely perform a review of systems for accurate transfer of
information (e.g., manual entries by personnel from test orders to test requisition or into a
LIS)? For referral specimens, how does the laboratory check for transcription errors
when patient test information is transcribed from the laboratory’s original requisition
form to the reference laboratory’s requisition?
What actions does the laboratory take if test requisitions from one or more clients are
consistently incomplete, illegible, or contain incorrect information?
What actions does the laboratory take if specimens received from one client are
consistently unsatisfactory for testing (e.g., specimens for Cytology)? Has the
laboratory’s efforts to reduce the recurrence of these problems been documented and
effective?
History
Rev. 233; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
6799435078b6afcd5ba944108e8b5af194eb47997941275cadf8e1bb8ec02a66
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