What problems always cause a DOT drug test to be cancelled?

When the laboratory discovers a “fatal flaw” during its processing of incoming specimens the laboratory will report that the specimen has been “Rejected for Testing” (with the reason stated).  The MRO must always cancel such a test.

The following are “fatal flaws”:
(1) There is no printed collector’s name and no collector’s signature;
(2) The specimen ID numbers on the specimen bottle and the CCF do not match;
(3) The specimen bottle seal is broken or shows evidence of tampering (and a split specimen cannot be redesignated); and
(4) Because of leakage or other causes, there is an insufficient amount of urine in the primary specimen bottle for analysis and the specimens cannot be redesignated.

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