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Test ID: Calculus analysis
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Calculus analysis
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Calculus analysis
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Useful For
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The investigation of the composition of calculi (stones)
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Method name and description
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Fourier transform infrared spectroscopy
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Clinical information
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Calculus analysis reveals the chemical composition of the stone and can provide useful information on its likely genesis. This, in turn, can indicate what interventions may be effective at preventing a recurrence.
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Aliases
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Stones analysis
Renal calculus
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Specimen type / Specimen volume / Specimen container
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Specimen type: Stone.
Specimen container: suitable plain (no preservatives) and clean container.
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Collection instructions / Special Precautions / Timing of collection
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Specimen should be cleaned of any tissue and blood and submitted in a clean and dry plain container.Exposure to preservatives (e.g. formalin) should be avoided. If exposure has occurred, the calculus should be rinsed as soon as possible with deionised water.
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Storage and transport instructions
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Transport Temperature: 2 - 30 °C.
Stone samples may be stored at 2 - 8°C until processing.
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Specimen Rejection Criteria
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Quantity is not sufficient.
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Biological reference intervals and clinical decision values
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Turnaround time / Days and times test performed / Specimen retention time
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Turnaround time: 5 working days.
Days and times test performed: Once a week.
Specimen retention time: 30 days.
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