Clinics and Departments

Laboratory Services

Lab Dept:

Urine/Stool

Test Name:

CHLORIDE, TIMED URINE

General Information

Lab Order Codes:

UCLQ

Synonyms:

Quantitative Urine Chloride; Chloride, 24 Hour Urine

CPT Codes:

82436 – Chloride, urine
81050 – Volume measurement for timed colleciont, each

Test Includes:

Chloride concentration measured in mEq/L and mEq/collection

Logistics

Test Indications:

Chloride is the major extracellular anion which is filtered fromt eh plasma by the kidney glomeruli and is passively reabsorbed in the proximal tubules. Useful in the evalution of kidney funciton.

Lab Testing Sections:

Chemistry

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 day

Special Instructions:

Submit an entire 24-hour collection. No preservative. Refrigerate specimen during and after collection.

Note: Starting and ending times of collection are required for a timed urine collection and must be documented electronically or on the proper request form.

Specimen

Specimen Type:

Urine, timed, collection

Container:

Plastic leakproof container (No preservative). Urine GUARDŽ collection container is preferred for a timed urine sample.

Draw Volume:

Submit an entire 24-hour urine collection

Processed Volume:

Minimum: 0.5 mL urine

Collection:

For timed urine collections, empty the bladder, discard the voided sample, and note the start time. Collect all urine voided for the specified time period. At the end of the period, note the finishing time, add the last voided sample to the container by emptying the bladder. Bring the refrigerated container to the lab. Make sure all specimens submitted to the laboratory are properly labeled with the patient’s name, medical record number and date of birth.

Special Processing:

N/A

Patient Preparation:

None

Sample Rejection:

Unlabeled or mislabeled specimen

Interpretive

Reference Range:

Infants:

2 – 10 mEq/collection

Children:

15 – 40 mEq/collection

Adults:

111 – 250 mEq/collection

Note: The reference values are for a 24 hours collecton. Specimens collected for other than a 24 hour period have no reference values.

Critical Values:

N/A

Limitations:

N/A

Methodology:

Integrated Multisensor Technology

References:

QuikLYTEŽ Integrated Multisensor insert sheet (2009-09-10) Siemens Healthcare Diagnostics Rev. K PN 717500.003 - US

Dimension RxL MAX Operator’s Guide (05/2003)

Tietz Textbook of Clinical Chemistry (1999) 3rd Edition, W.B. Saunders Company

Clinical Significance, Dade Behring Inc., Glasgow Business Community, Mailbox 531, P.O. Box 6101, Newark, Delaware 19714

Jacobs & DeMott Laboratory Test Handbook (2001) Lexi-Comp, Inc, Hudson, OH, 5th Edition

   


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