Cystinuria Panel
Ordering Recommendation
Initial test to diagnose or rule out cystinuria.
Quantitative Liquid Chromatography/Tandem Mass Spectrometry
3-7 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Random urine. Avoid dilute urine when possible.  
Specimen Preparation
Mix urine well. Transfer 8 mL urine to ARUP Standard Transport Tubes and freeze immediately. (Min: 3 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Refrigerated or room temperature specimens.  
Clinical information is needed for appropriate interpretation.  Additional required information includes age, gender, diet (eg, TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP web site or by contacting ARUP Client Services.  
Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month  
Reference Interval
Effective February 18, 2014
Available Separately
0 - 2 months
3 - 8 months
9 months - 2 years
3 - 12 years
13 years and older
NoArginine0 - 313 µmol/g CRT0 - 307 µmol/g CRT0 - 424 µmol/g CRT0 - 150 µmol/g CRT5 - 34 µmol/g CRT
NoCystine14 - 573 µmol/g CRT28 - 461 µmol/g CRT34 - 186 µmol/g CRT26 - 98 µmol/g CRT12 - 81 µmol/g CRT
NoLysine58 - 2246 µmol/g CRT52 - 1716 µmol/g CRT49 - 953 µmol/g CRT31 - 394 µmol/g CRT16 - 271 µmol/g CRT
NoOrnithine0 - 216 µmol/g CRT2 - 151 µmol/g CRT1 - 100 µmol/g CRT2 - 75 µmol/g CRT0 - 24 µmol/g CRT

Interpretive Data

Compliance Statement B: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
CPT Code(s)
Component Test Code*Component Chart NameLOINC
0020533Creatinine, Urine2161-8
0080601Arginine, Urine30062-4
0080615Lysine, Urine30048-3
0080617Ornithine, Urine30049-1
0080952Amino Acids, Urine Interpretation49250-4
0081107Cystine, Urine - Quantitative56677-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • Urine Amino Acids
  • urine arginine
  • Urine Cystine
  • urine lysine
  • urine ornithine