| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
OSMOLALITY, URINE
MessageChemistry
Test Code
LAB420
CPT Codes
83935
Preferred Specimen
| 1 mL urine (random or 24 hour) collected in a sterile leak-proof container |
Minimum Volume
Urine: 20 uL
Other Acceptable Specimens
Urine Cup/Red Top Tube
Instructions
| Mix well and aliquote specimen into red top tube. May be centrifuged if visible particulate matter present. Specimen should be tested immediately or up to 24 hours of collection. |
Transport Container
Urine Cup/Red Top Tube
Specimen Stability
Refrigerated: 24 hours
​Room temperature: 24 hours
​Room temperature: 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Noncompliant samples per specimen labeling, requirements, mislabeled samples, suspect contamination, and/or storage
Methodology
Freezing-Point Thermodynamics
FDA Status
Approved
Report Available
Same day
Reference Range
50 - 1200 MOSM/KG
Performing Laboratory
Hoag Newport/ Hoag Irvine
