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Test Code URCL Urine Chloride, Timed

Important Note

If ordering a random collection, use order code RCL. 

Specimen and Container/Tube

Specimen Type: Urine, 24 Hour Timed Collection

Preferred Specimen:  24 Hour Sterile Plastic Container

Other Acceptable specimens: Sterile Clean Glass Container

Specimen Stability

Storage Temperature

Stability

Room temperature

7 Days

Refrigerated

7 Days 

Frozen

not preferred 

Collection Instructions

  • Provide 24-hour urine collection instructions and container to patient.
  • Collect specimen per standard laboratory collection procedures. 
  • No preservatives or additives.
  • Keep 24 hour urine refrigerated during collection process. 

Specimen Handling and Transport Instructions

UCMC Onsite Instructions: 

  • Collect specimen per standard collection procedure and send to laboratory immediately.
  • No preservatives or additives.

UCMC Offsite and UC MedLab Outreach Instructions: 

  • Samples should be centrifuged within 2 hours of collection
  • No preservatives or additives
  • Aliquot 10.0 mL of well mixed urine into plastic tube. 
  • Urine samples must then be sent refrigerated at 2-8oC.

Rejection Criteria

  • Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits. 
  • Specimens that are collected with preservatives or additives.

Reference Values

 

Test

Age

Sex

Reference Range

Chloride, Urine Timed

All

All

110 - 250 mmol/24hr 

Critical Values

Not applicable

Turnaround Time

Turnaround times are relative to the time the specimen is received in the test laboratory. 

STAT Turnaround Time: 1 hour

Routine Turnaround Time: 4 hours

Testing Schedule: 24/7

Clinical Indications

Useful in the assessment of fluid balance.

Test Components

Urine collection duration, Urine total volume, Urine chloride random, Urine chloride timed 

CPT Codes

82436

LOINC Codes

22078-4, 2079-2 

Methodology

Ion Specific Electrode (ISE) (Roche Diagnostics)

Synonyms/Keyword Search

24 hour chloride

Last Review Date

4/4/2025

Volume

Preferred Volume: 10.0 mL

Minimum Volume: 1.0 mL