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Test Name:
Sulfate, Urine, 24-Hour
- SBMF No:
45577 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
U SO4 - ABN:
Not required - CPT Code:
84392 - Ref Lab Test No:
0081102 - Also Known As:
SO4 - Spec Type:
Urine, 24-hour - Spec Container:
24-hour urine container (no preservative added) - Pref Vol:
4.0 mL - Min Vol:
2.0 mL - Spec Collect:
To begin collection of timed specimen, have patient urinate, noting date and exact time
Discard this first portion of urine, but document date and time of voiding on container label and test requisition as "start" of timed specimen
Save all urine voided during designated time period, including portion voided at exact end of time period
IMPORTANT: Refrigerate entire specimen (2-8°C) during and after collection to prevent bacterial growth
Document date and time of final voiding on label and requisition as "end" of timed specimen - Spec Process:
Upon completion of collection, mix entire specimen well and measure 24-hour volume
Pour off 4.0 mL of urine into separate plastic tube (Min: 2.0 mL)
Note total urine volume and collection time interval on aliquot label and test request form
Freeze urine aliquot and transport frozen - Spec Store Transport:
Frozen - Spec Stability:
Room temperature (20-30°C): Unacceptable
Refrigerated (2-8°C): Unacceptable
1 month frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Specimen types other than urine
Room temperature specimen - Spec Remarks:
CRITICAL FROZEN – Separate specimens must be submitted when multiple tests are ordered
Acceptable to refrigerate during collection - Methodology:
Quantitative Spectrophotometric - Reference Range:
6-30 mmol/d
Interpretive Data:
Reference intervals have been established for 24 hour collections only. - Day Run:
Wed, Sat - Time Reported:
2-9 days - Test Type:
URINE
