Cystine

Test ID: 

703653

CPT code:

82131

Synonyms:

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.