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Test ID RCHLU Chloride, Random, Urine

Reporting Name

Chloride, Random, U

Useful For

An indicator of fluid balance and acid-base homeostasis

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Container/Tube: Plastic, 5-mL tube

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  30 days
  Ambient  7 days

Reference Values

No established reference values

Random urine chloride may be interpreted in conjunction with serum chloride, using both values to calculate fractional excretion of chloride.

 

The calculation for fractional excretion (FE) of chloride (Cl) is

FE(Cl) =(Cl [urine] x Creat [serum])/(Cl [serum] x Creat [urine]) x100

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82436

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Method Name

Potentiometric, Indirect Ion-Selective Electrode (ISE)

Forms

If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.

Secondary ID

610607

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days
Sanford Laboratories - Fargo Additional Information:

SANFORD INTERFACE BUILD INFORMATION

Result Code Result Code Description
18378 Chloride, Random, U