Kidney stone urine/saturation

Alphabetical Test listing

Test name:

Test number:

13502

Excellian order number:

LAB13502

Abbreviation:

UEX

Alternate names:

Kidney stone urine profile with saturation calculations
Kidney stone urine test combination with saturation calculations
Supersaturation profile

Useful for:

Evaluate stone composition, metabolic factors affecting stone formation
Work up nephrolithiasis
Includes magnesium plus: ammonia; calcium; chloride; citrate; creatinine; cystine; osmolality; oxalate; pH; phosphorus; potassium; sodium; sulfate; uric acid; saturation ratios: brushite, calcium oxalate, monosodium urate, struvite; graph review

Specimen type:

Urine, 24 hr

Collection container:

Volume:

Two (2) 50 mL aliquots

Collection instructions:

When test is requested, give patient a labelled 24-hour urine jug. Keep aliquot containers in the lab.
Communicate to the patient to be sure to return their collection to the same site that the 24-hour urine jug was provided, to ensure utilization of the complete kit.
Collect a single 24-hour urine collection without preservative.

Refrigerate specimen throughout the collection period.

Processing instructions:

Measure the total volume
Mix well
Transfer two 50 mL aliquots of the collection to two (2) screw cap plastic containers, (one without preservative and the other with HCL preservative)
Write total volume of 24 hour collection on aliquots with other clinical information on each container
Freeze immediately

Transport container:

Two (2) screw cap plastic containers provided in kit

Transport and stability:

Frozen (strict)

Performing lab:

LabCorp Burlington (306266): R-LC

TAT:

10 - 12 days

Method:

See individual components

Reference ranges:

An interpretive report will be provided

CPT codes:

82436
82131
84560
82340
83945
81003
82507
82140
84392
83935
84105
84300
84133
83735
82570

LOINC code:

Result 26888-8

Date created:

04/09/2019

Revised date:

06/29/2021

Review date:

03/03/2021