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Test Code FLOSM Osmolality, Body Fluid

Specimen Type

Body fluid – specify body fluid type

Container

Red top

Preferred Volume

4 mL

UCMC Collection Instructions

Acceptable fluid types include: CSF, cyst, drainage, pericardial, peritoneal, pleural and joint.

If you need a specimen source not found in order entry, submit the specimen with a miscellaneous requisition specifying fluid type, or contact the laboratory for additional submission instructions.   Fluid submitted that is not on the list acceptable fluid types requires laboratory director approval for analysis.

Availability

24/7

Turnaround Time

3 hours

STAT Availability

Not Available

Test Methodology

Freezing point depression osmometry

CPT Code

83935

Test Includes

quantitative determination of osmolality in approved body fluids

Reference Range

Test method analytical performance not validated for specimen type. No reference range available. The test result should be integrated into the clinical context for interpretation.

Critical Results

None

Test Limitations

Test method analytical performance not validated for specimen type. No reference range available. The test result should be integrated into the clinical context for interpretation.

Minimum Volume

1 mL

Fee Code

43037