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Kidney Stone Urine Test
STONEDIAG
Synonyms
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Effective May 14, 2025: This test is temporarily unavailable due to a nationwide reagent issue. The downtime is expected to be Greater than 30 days. An alternative test is not available.Supersaturation profile, 24 Hr Urine
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Allscripts (AEHR) Order Name
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Kidney Stone Urine Test
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Sunrise Clinical Manager (SCM) Order Name
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Kidney Stone Urine Test
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EPIC Order Name
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Stone Risk Diagnostic Profile
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Clinical Info
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Effective May 14, 2025: This test is temporarily unavailable due to a nationwide reagent issue. The downtime is expected to be Greater than 30 days.
An alternative test is not available.
Diagnosis and management of patients
with renal lithiasis:
-Predicting the likely composition of
the stone, in patients who have a radiopaque stone, for whom stone analysis is
not available
-May aid in designing a treatment program
· Aiding in identification of specific risk factors for stones using a 24-hour urine collection
· Monitoring the effectiveness of therapy by confirming that the crystallization potential has indeed decreased
· Evaluating kidney excretion of acid and urine pH
· Estimating a patient's protein intake
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Specimen Type
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Urine
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Container
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24 hr Urine Container
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Collection Instructions
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Container/Tube: 24 Hr Urine Container with diazolidinyl urea (Germall) added at the beginning of collection.
Specimen: Send entire 24 Hour Container or 35 mL (25mL min) form well mixed 24 hr urine with TV on sample.
Note: For Patients 18 year or younger please indicate Height and weight
Collection Instructions:
1) Add 5 mL of diazolidinyl urea as preservative at start of collection or refrigerate specimen during and after collection.
2) Collect urine for 24 hours.
3) Specimen pH should be between 4.5 – 8 and will stay in that range if the preservation is added at the
beginning of collection or kept refrigerated during the entirety of the
collection.
Specimens with pH above 8 indicate bacterial contamination, and testing will be canceled.
Do not attempt to adjust pH as it will adversely affect results.
4) If not using Germall, the specimen must be kept refrigerated during the entirety of the collection and send specimen
frozen.
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Transport Instructions
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Refrigerated
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Specimen Stability
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3 Days Room Temperature
14 Days Refrigerated
14 Days Frozen
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Methodology
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Enzymatic, Freezing
Point Depression, High-Performance
Ion Chromatography (HPIC)
Photometric, Colorimetric
Endpoint Assay, pH Meter,Potentiometric,
Indirect Ion-Selective Electrode (ISE)
Enzymatic
Colorimetric Assay, Uricase, Kinetic
UV Assay, Calculation
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Days Performed
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TAT: 3-6 Days
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Performing Laboratory
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Mayo Medial Laboratories
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CPT
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82340-Calcium; 82436-Chloride; 82507-Citrate excretion; 82570-Creatinine; 83735-Magnesium; 83935-Osmolality
83945-Oxalate; 83986-pH; 84105-Phosphorus; 84133-Potassium; 84300-Sodium; 84392-Sulfate; 84560-Uric acid;
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PDM
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5910100
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Result Interpretation
See report.
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Forms
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