Sodium, Timed Urine


Sunquest Code:UNAT  
Epic Code:LAB445Epic Name:Sodium Timed Urine
Order Instructions:Order UACOL in addition to UNAT. Enter collection volume and duration.
Synonyms:UNAT
Methodology:Indirect potentiometric
CPT Code:84300
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure



Collection Instructions

Specimen:Urine, timed collection (20 to 28 hours)
Optimal Volume:Submit entire collection; analysis requires 0.2 mL
Container:3 L plastic jug (Plastic leakproof container, sterile)


Processing and Shipping

Specimen Processing:Mix collection well before aliquot is taken. Aliquot 5 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Specimens containing red cells or precipitate must be centrifuged. Urine containing bladder fluid is acceptable. Enter coded comment IRRFL (urine contains bladder irrigation fluid). Stability: Room or refrigerated temperature - 1 week; frozen - 1 year.
Test Performed at or Referral Lab Chemistry  (Fairview Range - FRMC, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank)


Interpretive

Reference Range:40-220 mmol/24 hours; varies with diet.


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