The University of Iowa (UIHC)
Department of Pathology
LABORATORY SERVICES HANDBOOK

Osmolality
Order Code: UROS
Order Form: A-1a General Lab or IPR Req 		  Chemistry
6240 RCP
356-3527 
Specimen
 
Urine
Collection Medium:
Urine - Random urine container 


Alternate
Collection Media:


Call laboratory for additional acceptable specimen collection 
containers.


Minimum:


3 ml;  do not collect in acid


Testing Schedule:


24 hrs/day, 7 days a week, including holidays.


Analytic Time:


3 hours (upon receipt in laboratory)


Reference Range:


Dependent upon diet and state of hydration.
Commonly:  350-1050 mOsm/kg


Methodology:


Freezing Point Depression


CPT Code:


83935


 


See Additional Information:
Urine Tests Requiring no Preservatives




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Updated: 07/08/2003

Note: The information contained in this handbook is  
            for use by personnel of University of Iowa Health Care. 
            No other use is implied or intended.