StoneRisk® Diagnostic Profile [442Z]

Test Code
USTON

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
60 mL of a preserved 24-hour urine and unpreserved 24-hour urine, collected in a Quest Diagnostics' 24-hour Urine Collection System

Minimum Volume
30 mL

Instructions
Use only Quest 24-hour Urine Collection Kits specific for renal stone formation diagnosis. Follow instructions in the kit.

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 ensure 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.
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 (>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, the other box 2 of 2.

Note:
Urine must only be collected and stored in the large orange collection container.

Do not remove sponge from the orange collection container.
Do not remove wool from the white container.
Do not collect the first urination at the beginning of 24-hour collection.
During collection process, store large orange container in a cool location.

Refrigerate specimen during collection. Once poured into vials with preservative (provided in the Quest/Mission 24-hour Urine Collection System), sample is acceptable at room temperature or refrigerated for up to 10 days.

Transport Container
See Instructions

Transport Temperature
Room temperature

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

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

Methodology
Calculation (CALC) • Immunochemiluminometric Assay (ICMA) • Ion Coupled Plasma/Optical Emission Spectrophotometry (ICP/OES) • Spectrophotometry (SP)

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 CA
27027 Tourney Road
Valencia, CA 91355



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.