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MICROSCOPIC EXAMS FOR CRYSTALS, joint fluid (087-0600)
Test Mnemonic:


Specimen Requirements:

3 mL fresh specimen should be submitted.  Disposable tube, 16 x 100 mL.


Disposable tube, 16 x 100 mL.

Minimum Volume:

1 mL


Delivered to Sample Management after collection.  

Specimen Preparation:

Body fluids from all sources.

Centrifuge the specimen prior to analysis to remove possible cellular and bacterial contaminants.





Refrigerated:  ≤ 24 hours

Causes for Rejection:

Specimen too viscous for sampling, incomplete and/or incorrect sample identification, improper storage/transport.                                        

Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)

Turnaround Time:

 Routine: 8 hours; ASAP: 4 hours; STAT: 1 hour


Microscopy: Light and Polarized


Clinical Chemistry

CPT 4 Code:


When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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