Calculi (Stone) Analysis with Photo
Also known as: CALCPHOTO
Use
Calculi (stones) are the result of physiological processes that lead to the formation of crystalline compounds in a biological matrix and blood. This analysis identifies and reports the clinically significant crystalline components within the calculi specimens, aiding in the understanding and management of conditions like nephrolithiasis (kidney stones). The gross description of the calculi may not always align with the composition determined through Fourier Transform Infrared (FTIR) analysis, which provides a detailed insight into the stone composition—aiding in treatment decisions and patient management.
Special Instructions
For accurate analysis, it is imperative that calculi specimens are not wrapped in tape or embedded in wax, as these conditions could delay or interfere with the process. Large specimens should be placed in a clean, empty urine cup or similar container for transport. Samples that are transported in liquid or gel may require additional drying time of 48 to 72 hours before analysis can be performed.
Limitations
The analysis focuses on crystalline components and does not report on matrix components. The appearance and gross description of the calculi may differ from the composition analysis provided by FTIR methods. Specimen handling conditions such as wrapping in tape, embedding in wax, or being wet or bloody, as well as transport in liquid or gel, may delay the analysis and potentially affect the results.
New York Approved
Methodology
Other
Biomarkers
LOINC Codes
- 3154-2
- 14618-3
- 9795-6
- 11526-1
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (Unknown)
Volume
Not provided
Minimum Volume
Not provided
Container
ARUP standard transport tube or clean, empty urine cup (150 mL) or similar container
Collection Instructions
Air dry calculi and transfer to ARUP standard transport tube. Larger specimens may be transported in a clean, empty urine cup.
Storage Instructions
Store at room temperature.
Causes for Rejection
Specimens wrapped in tape, embedded in wax, transported in liquid or gel, or contaminated with blood will delay or prevent analysis.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Indefinitely |
| Refrigerated | Indefinitely |
| Frozen | Indefinitely |