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Test ID: 


CPT code:



Cystine, Quantitative, Urine

Clinical Use:

Measures levels of cystine in urine to detect presence of cystinuria and nephrolithiasis.

Specimen Type:

Urine (24-hour)

Requested Volume: 

5 mL aliquot

Minimum Volume: 

2.5 mL aliquot

Container Type: 

Plastic urine container without preservative.

Storage Instructions:

Maintain specimen at room temperature. 

Stability Requirements:

Stable frozen for one year, room temperature for seven days, or refrigerated for three months.

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