Test Name Cystinuria Profile, Quantitative, 24 Hour Urine
Posted Date
Effective Date
Update Type Reference range changed
CPT Code 82136
Order Code CYSQN
Referral Laboratory Mayo Medical Laboratories

Cystinuria Profile, Quantitative, 24 Hour Urine

Order Code:                  CYSQN

Fee Code:                    20463 (CPT 82136)

Reference Laboratory:   Mayo CYSQN

 

The reference ranges for Mayo Clinic Laboratories’ Cystinuria Profile, Quantitative, 24 Hour Urine will be updated as follows effective June 17, 2024:

 

CYSTINE 

3-15 years: < or = 53 mcmol/24 h 

> or =16 years: < or = 115 mcmol/24 h 

 

LYSINE 

3-15 years: < or = 140 mcmol/24 h 

> or =16 years: < or = 290 mcmol/24 h 

 

ORNITHINE 

3-15 years: < or = 16 mcmol/24 h 

> or =16 years: < or = 70 mcmol/24 h 

 

ARGININE 

3-15 years: < or = 25 mcmol/24 h 

> or =16 years: < or = 64 mcmol/24 h 

 

Conversion Formulas: 

Result in mcmol/24 hours x 0.24=result in mg/24 h 

Result in mg/24 hours x 4.17=result in mcmol/24 h