StoneRisk® Diagnostic Profile

Message

Must use 24 hr Urine Collection Kit specifically for StoneRisk Diagnostic Profile
Follow directions. At the end of the collection, and within 2-4 hours of collection, mix contents of the collection jug and pour 30 mL into each of the 2 vials included in the kit, Label each vial with Name, birth date and the start and stop time/date of collection.
Only submit the 2 vials to the lab.

Test Code

STONERISK

Quest Code

442

Alias/See Also

Calculus Risk Profile
442
StoneRisk Profile

CPT Codes
82140, 82340, 82507, 82570, 83735, 83945, 83986, 84105, 84133, 84300, 84392, 84560

Includes

Ammonium Urine, Brushite, Calcium Oxalate, Calcium Urine, Citrate Urine, Creatinine Urine, Magnesium Urine, Oxalate Urine, pH Urine, Phosphorus Urine, Potassium Urine, Sodium Urate, Sodium Urine, Struvite, Sulfate Urine, Uric Acid, Uric Acid Urine

Preferred Specimen

Only submit the 2 aliquot vials of urine as directed by the intructions included with the kit.

Minimum Volume

30 mL

Instructions

Use only Quest 24-hour Urine Collection Kits specific for renal stone formation diagnosis. Follow instructions in the kit. Test should not be ordered on patients taking lithium, as lithium can affect results. For additional information, please contact the Quest Diagnostics Nichols Institute of Valencia at 800-421-4449.

1.) Upon completion of 24-hour collection in the large orange collection container, tighten the cap on the container and mix contents in the container vigorously for one minute. A good mix will assure accurate test results.
2.) Carefully fill the two plastic white vials with urine collected in the large orange container. The two white vials must be filled within two to four hours of completion of 24-hour collection. Fill and cap vials one at a time. Cap both vials tightly, write patient's name on each vial, and place in zip-lock bags provided (do not remove absorbent sheets).
3.) Complete the patient information section. (Patient's weight is no longer needed.)
4.) Place specimen in mail-back box and mail to the laboratory. DO NOT MAIL LARGE ORANGE COLLECTION CONTAINER.

For High Urine Output: Patient with a high urine output (greater than 3.8 L) will require more than one large container. Collect urine in the first container until it is 3/4 full and then begin filling the second container to complete the 24-hour collection. Carefully follow steps 1-4 for each jug and mark one as box 1 of 2 and the other box 2 of 2.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 10 days
Refrigerated: 10 days
Frozen: Unacceptable

Methodology
Inductively Coupled Plasma-Optical Emission Spectrophotometry • Immunochemiluminometric Assay • Spectrophotometry (SP) • Calculation

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Mon-Sat; Report available: 3-5 days

Reference Range

See Laboratory Report

Clinical Significance

StoneRisk^® profile is for stone formers with a positive urine culture indicating urinary tract infection (UTI), also for recurrent stone formers or when attending physician deems it medically necessary for the patient to have comprehensive metabolic evaluation.

Performing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia, CA 91355-5386

Last Updated: February 25, 2020

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.