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University Hospitals Dorset NHS Foundation Trust

Microbiology

Rejection criteria

Incorrectly/Unlabelled specimens

Labelling Criteria

 

Ideally the following SHOULD be included on the sample and form:

     First name

     Surname

     Date of birth

     Hospital number/NHS number

 

However, GP/OPD samples can be accepted with 3 points of identification completed.

 

Specimens that are received and not labelled with the correct details will be rejected unless these are unrepeatable specimens

If an unrepeatable specimen (see below) is received inadequately labelled, it will be processed and a comment made on the report

Unrepeatable specimens include:

  • Biopsies

  • Tissues

  • Joint aspirates

  • Pleural fluids

  • Ascitic fluids

  

Incorrect specimen type

Where inappropriate specimens are submitted for tests requested, a report will be issued requesting submission of the correct specimen.

 

Incorrect specimen container type

Where specimens are received in inappropriate containers requested, a report will be issued requesting submission in the correct container.

 

Expired specimen container

Samples received in expired containers will be rejected and a report will be issued.

 

Old specimens

All non-boric acid urine specimens over 2 days old and not stored in the refrigerator are rejected.

Boric acid preserved urine samples over 96 hours will be rejected.

All sputum specimens for culture over 2 days old and not stored in the refrigerator are rejected.

All faeces specimens greater than 3 days old are rejected.

All clotted blood samples >5 days old will be rejected.

 

Insufficient Clinical details

Urine specimens received without sufficient/appropriate clinical information may be rejected after review by Consultant Medical Microbiologist.

 

Ante-natal serology samples will be rejected after discussion with the relevant ante-natal clinic.

All rejected samples will have a report issued stating the reason for rejection.

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