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Rejection criteria are designed to prevent inaccurate data and to ensure the safety of patients and laboratory personnel.
Microbiology  samples that do not meet the required sample and test request requirements will be rejected.
Reasons for sample rejection can include the following:

  • Improperly labelled sample
  • Unlabelled sample
  • Incomplete information on the sample
  • Incomplete information on the requisition
  • Sub-optimal sample
    i.e. leaking urine and/or stool containers, insufficient quantity, inappropriate sample for test request
  • Duplicate microbiology samples received on the same day
    i.e. multiple stool, sputa samples
  • Sample delayed in transit

Also refer to: CLS Specimen Rejection, and  Microbiology Requisitions.