It is unlabelled or the identity on the form does not match that on the specimen.
It is not correct for the test being requested or it has been collected in the wrong container, e.g. containing the incorrect anticoagulant.
The specimen container is leaking.
There is evidence of contamination.
A blood sample appears haemolyzed or an anticoagulated specimen contains clots.
There is too long delay in the specimen reaching the laboratory or it has not been transported
Lablink 