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Polymerase chain reaction (PCR)/sequence-specific oligonucleotide probes (SSOP)
Regarding whole blood specimens, an adequate test requires the presence of intact lymphocytes at the time of testing. Even taking appropriate precautions, an occasional specimen will not be satisfactory for testing. In such cases, fresh blood should be drawn for retesting.
Hemolysis; clotted specimen; tube other than lavender-top (EDTA) tube