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HelpTest ID KIDST Kidney Stone Analysis
Shipping Instructions
Transport specimen per Kidney Stone Packaging Instructions in Special Instructions.
Necessary Information
Specimen source is required.
Specimen Required
Supplies: Stone Analysis Collection Kit (T550)
Sources: Bladder, kidney, prostatic, renal, or urinary
Specimen Volume: Entire dried calculi specimen
Collection Instructions:
1. Clean any blood or foreign material from the stone with water.
2. Send entire stone. Stone should be air dried thoroughly at room temperature for 24 hours on a tissue or towel and sent in screw-capped, plastic container.
3. Indicate source of specimen on outside of container (eg, left kidney, bladder, right ureter).
4. If multiple stones are collected and individual testing is desired for each stone, place each stone into its own container. Testing must be ordered separately on each stone. Each order will be charged separately.
5. Important: Any specimen received with residual moisture on the stone or in the container will result in a testing delay. STNPC will be performed and billed as appropriate.
-A dry stone will not stick to the walls of the container.
-Do not send stone in formalin, surgical gel, or any other liquid as it interferes with the analytical procedure.
-Do not tape specimen to anything. Tape interferes with the analytical procedure.
-Do not place stone directly in a bag. If specimen is received in a bag, either transfer stone into a screw-capped, plastic container or place bag containing stone in a screw-capped, plastic container.
-Do not send filter.
Forms
If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.
Useful For
Managing patients with recurrent renal calculi
Testing Algorithm
Upon arrival in the performing laboratory, all stone specimens and the containers they are received in will be inspected. Prior to analysis, stones must be clean and dry. If the stone, or its container, has any amount of moisture, blood, or foreign material present, the laboratory will add the STNPC and perform cleaning and drying of the specimen at an additional charge.
Special Instructions
Method Name
Infrared Spectrum Analysis
Reporting Name
Kidney Stone AnalysisSpecimen Type
StoneSpecimen Minimum Volume
Entire stone
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Stone | Ambient (preferred) | |
| Frozen | 365 days | |
| Refrigerated | 365 days | |
Reference Values
The presence of a kidney stone is abnormal. A quantitative report will be provided after analysis.
Day(s) and Time(s) Performed
Monday through Friday; 8 a.m.-8 p.m.
Saturday; 8 a.m.-3 p.m.; Continuously
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
82365
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| KIDST | Kidney Stone Analysis | 74446-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 605761 | Kidney Stone Analysis | 40787-4 |
| SRC1 | Source: | 31208-2 |
| 605762 | Interpretation | 9795-6 |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| STNPC | Stone Processing Charge | No, (Result Bill) | No |