Litholink 24-Hour Urine, KS
Also known as: Litholink 24 Hour Urine Panel
Use
This test is used for treatment and management of known or suspected kidney stone formers.
Special Instructions
Not provided.
Limitations
This test was developed and its performance characteristics determined by Labcorp. However, it has not been cleared or approved by the Food and Drug Administration (FDA), which may limit its acceptance in some regulatory environments. The test is also reliant on the patient following specific instructions for proper sample collection and preservation. Incorrect or incomplete sample collection may lead to rejection of the sample.
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 3167-4 - Specimen vol 24h Ur
- 26843-3 - Cystine 24h Ur Ql
- 34736-9 - CaOx index 24h Ur-Rto
- 6874-2 - Calcium 24h Ur-mRate
- 2701-1 - Oxalate 24h Ur-mRate
- 6687-8 - Citrate 24h Ur-mRate
- 42673-4 - Ca H2 Phos dihyd 24h SatFr Ur
- 27378-9 - pH 24h Ur
- 42678-3 - Urate 24h SatFr Ur
- 3087-4 - Urate 24h Ur-mRate
- 2956-1 - Sodium 24h Ur-sRate
- 2829-0 - Potassium 24h Ur-sRate
- 24447-5 - Magnesium 24h Ur-mRate
- 2779-7 - Phosphate 24h Ur-mRate
- 25308-8 - Ammonia 24h Ur-sRate
- 2079-2 - Chloride 24h Ur-sRate
- 26889-6 - Sulfate 24h Ur-sRate
- 3096-5 - UUN 24h Ur-mRate
- 93746-6 - Protein catabolic rate 24h Ur-mRate
- 2162-6 - Creat 24h Ur-mRate
- 35654-3 - Creat/BW 24h Ur-RelMRat
- 13717-4 - Calcium/Creat 24h Ur
- 77202-0 - Laboratory comment Report
- 11502-2 - Laboratory report
Result Turnaround Time
4-8 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
40 mL of 24-hour urine
Minimum Volume
40 mL of 24-hour urine
Collection Instructions
Included preservative functions as a volume marker must be added to the main collection container at the beginning of collection and then return a 40 mL aliquot of the 24-hour urine per collection. Full 24-hour collection: Void and discard first urine and continue to collect for 24-hour period from that void time.
Patient Preparation
Void and discard first urine and continue to collect for a 24-hour period from that void time.
Storage Instructions
Room temperature with preservative; do not refrigerate
Causes for Rejection
Too old (>96 hours); under or over collected (26 hours); incorrect use of the Litholink preservative or the Litholink preservative not detected
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 days or 96 hours from end of collection |
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