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81420M
PURINE AND PYRIMIDINE PANEL, RANDOM URINE

Test Code 81420M 
Test PURINE AND PYRIMIDINE PANEL, RANDOM URINE 
Methodology Liquid Chromatography-Tandem Mass Spectrophotometry (LC-MS/MS) 
Description Useful for diagnosis and monitoring disorders of purine and pyrimidine metabolism, and laboratory evlauation of primary and secondary hyperuricemias. 
Specimen 3.0 mL (minimum: 1.0 mL) from a random urine collection. Send specimen FROZEN in plastic, 13-mL urine tube.

NOTE:
PATIENT'S AGE IS REQUIRED ON REQUEST FORM FOR PROCESSING. 

Reference Values URACIL - TC 81420
0-2 years: < or = 31 mmol/mol creatinine
3-5 years: < or = 30 mmol/mol creatinine
6-11 years: < or = 28 mmol/mol creatinine
12 - 17 years: < or = 26 mmol/mol creatinine
> or = 18 years: < or = 35 mmol/mol creatinine

URIC ACID - TC 6813
0-2 years: < or = 2249 mmol/mol creatinine
3-5 years: < or = 1900 mmol/mol creatinine
6-11 years: < or = 1398 mmol/mol creatinine
12-17 years: < or = 698 mmol/mol creatinine
> or = 18 years: < or = 669 mmol/mol
creatinine

HYPOXANTHINE - TC 6814
0-2 years: <53 mmol/mol creatinine
3-5 years: <49 mmol/mol creatinine
6-11 years: <43 mmol/mol creatinine
12-17 years: <36 mmol/mol creatinine
> or = 18 years: <40 mmol/mol creatinine

XANTHINE - TC 6815
0-2 years: <49 mmol/mol creatinine
3-5 years: <41 mmol/mol creatinine
6-11 years: <30 mmol/mol creatinine
12-17 years: <16 mmol/mol creatinine
> or = 18 years: <51 mmol/mol creatinine 

Analytic Time 4 Days 
Day(s) Test Set Up Varies; 1 time per week 
CPT Code(s) 83789