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Pathology and Laboratory Medicine
Test Catalogue


Cerebrospinal Fluid

Clinical Microbiology

​Ordering Recommendations

​Specimen Requirements​

  • ​Lumbar puncture
  • AV reservoir
  • AV shunt
  • Ventricular fluid
  • Lumbar drain fluid
​Collection Procedure
​Required Volume
  • Optimal Volume: 2 mL
  • Minimum Volume: 0.5 mL
    (Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection)
  • Refrigerate at 2 to 8°C if sample cannot be immediately transported to laboratory                                                                          
Grounds for Rejection​

Testing Information​ ​

Testing Site​
  • ​RUH
Results Reporting​
​Reflex Testing
  • ​Specimens found to be positive on the BK/JC PCR test can be further tested to differentiate BK virus from JC virus
  • Contact the laboratory if further testing is required
​Clinical Interpretation
​Specimen Retention
​Alternate Test Names
  • Polyoma virus
  • John Cunningham virus (JCV)

Test Ordering Requirements​

Forms Required


​If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-294 v2

Last Modified: Wednesday, December 13, 2017 |
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