Quantitative Orotic Acid, Urine

Useful For​	​Evaluating the differential diagnosis of hyperammonemia and hereditary orotic aciduria. For female patients, it may be helpful in determining carrier status or exclude OTC deficiency after an allupurinol loading test.
Clinical Indication​	failure to thrive mental and physical retardation
Interpretation ​	​The interpretation of the result must be correlated with clinical and laboratory findings. The value of the orotic acid concentration is reported.

 

For URGENT analysis, contact the Biochemical Genetics laboratory at 6394 8728 or the Lead Scientist at 8388 8741 to discuss.
 
If sent after office hours, urine will be stored in Clinical Laboratory -20°C freezer.