Chloride, Random, Urine

Test Code
UCLR


Alias/See Also
Epic: LAB374


Preferred Specimen

Specimen Type: Urine
Collection Container: Clear top (no additive)
Specimen Volume: 3 mL




Minimum Volume

0.5 mL




Instructions
  1. Collect random urine specimen in a sterile container.
  2. Aliquot/transfer at least 3 mL specimen into a clear top (no additive) vacutainer.


Transport Container
Clear top (no additive) tube


Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 1 month




Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Unlabeled, mislabeled, wrong tube type, QNS, exceeds specimen stability requirements.




Methodology

Indirect (diluted) Ion-selective electrode



Setup Schedule

Daily




Report Available

Same day




Reference Range
See laboratory report


Clinical Significance
Chloride is the major extracellular anion. The majority of ingested chloride is absorbed and the excess excreted into the urine.

Low levels of Cl- are observed in excessive vomiting, over-hydration, inappropriate ADH secretion, compensated respiratory acidosis, Addison's disease, salt-losing nephritis, severe burns, and in diabetic ketoacidosis.

Elevated Cl- is seen in mineralocorticosteroid deficiency, non-gap metabolic acidosis, excessive amounts of IV infusion with normal saline, renal tubule loss, and in some cases of hyperparathyroidism.

Chloride measurement is useful in differentiating acidemias and alkalemias.


Performing Laboratory

Inova Laboratories

2832 Juniper Street

Fairfax, VA 22031




Last Updated: April 26, 2023
Last Review: N. Wolford, April 26, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.