Osmolality, Urine

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General Information

Lab Name
Osmolality, URN
Lab Code
UOSMO
Epic Ordering
Osmolality, Urine
Description
Synonyms

Interpretation

Method

Freezing Point Depression

Reference Range
Units: mOsm/kg
Female Male
AgeRangeAgeRange
0-100-850 0-100-850

Effective date: 03/27/2018

Ordering & Collection

Specimen Type
Urine
Collection

RANDOM URINE - Refrigerate immediately after collection
Also acceptable: 24 hour urine, Refrigerate during collection/No preservative

Handling Instructions
Quantity
requested: 1 mL urine
minimum: 0.5 mL urine

Processing

Processing

UW-MT Instructions
SPS - Take aliquot to Hand Test bench
If 24 hr urine, Measure & Record TV on request, enter Interval,TV as login comment

HMC Instructions
SPS - Take specimen directly to the UA Bench
If 24 hr urine, Measure & Record TV on request, enter Interval,TV as login comment

Stability: Refrigerated: 24 hours. Freeze for longer storage.

Performance

LIS Dept Code
Chemistry (CH)
Performing Location(s)
HMC Chemistry, Urinalysis
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

UW-MT Chemistry, Special
206-520-4600

Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195

Frequency
Daily
Available STAT?
Yes

Billing & Coding

CPT codes
83935
LOINC
2695-5
Interfaced Order Code
UOW506
Interfaced Result Code
UOW506