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CYSTINE, QUANT. 24 HR URINE
Message"The test request form must state date and time collection started and finished. The test request form must state whether patient is taking penicillamine. Measure and record on the test request form 24-hour total urine volume.
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Test Code
700195
CPT Codes
82131
Preferred Specimen
"Urine (24-hour)
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Minimum Volume
"2.5 mL aliquot
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Instructions
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Maintain specimen at room temperature. Stable frozen for one year, room temperature for seven days, or refrigerated for three months.
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Maintain specimen at room temperature. Stable frozen for one year, room temperature for seven days, or refrigerated for three months.
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Transport Container
"Plastic urine container without preservative.
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Transport Temperature
"Maintain specimen at room temperature
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Specimen Stability
"Stable frozen for one year, room temperature for seven days, or refrigerated for three months.
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Methodology
" Liquid chromatography/tandem mass spectometry (LC/MS-MS) "
