Orotic Acid
Label Mnemonic: OROTAU
Epic Lab Code: LAB3767
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Random Urine
Specimen Instructions:
Patient's age is required.
Collection Medium:
Yellow top round bottom tube (no additive)
Minimum:
10 mL random or timed urine collected in TWO Yellow top round bottom tubes (no additives).

Absolute Minimum: 3.0 mL
Turn Around Time:
8 working days upon receipt at reference laboratory
Reference Range:
<2 weeks: 1.4-5.3 mmol/mol creatinine 2 weeks-1 year: 1.0-3.2 mmol/mol creatinine 2-10 years: 0.5-3.3 mmol/mol creatinine > or = 11 years: 0.4-1.2 mmol/mol creatinine
Interpretive Data:
The value for the orotic acid concentration is reported. The interpretation of the result must be correlated with clinical and other laboratory findings.
Comments:
Useful For:
Evaluation of the differential diagnosis of hyperammonemia and hereditary orotic aciduria

Cautions:
Pregnant women will normally excrete up to twice the upper limit of the adult reference range.
Methodology:
Colorimetric
CPT Code:
83921
 
See Additional Information:
Urine Tests Requiring no Preservatives