Due to low test volumes, effective November 1st, the Toxicology Department at Spectrum Health Regional Laboratory will no longer be offering Citrate (#8768) or Oxalate (#8837) testing on 24 hour urines. These specimens will now be routed to Mayo Medical Laboratories for testing. These tests should be ordered as Reference Miscellaneous (#8998). Please indicate complete test name when ordering.
Please refer to the lab catalog for more detailed patient preparation and specimen requirements:
Note: Spectrum Health does not stock toluene as a preservative. Please maintain collection without preservative and store refrigerated.