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Mayo Clinic Laboratories

Test Code ORGANIC ACIDS ORGANIC ACIDS, QUALITATIVE, URINE

Performing Laboratory

ST LOUIS CHILDREN'S HOSPITAL (SLCH)

Specimen Requirements

Specimen Type: Urine, random collection

Container/Tube  
Preferred:
 Clean, plastic urine container(s) with no preservative.
Acceptable: Clean, screw-cap container with no preservative.
Collection Volume: 5.0 mL (minimum 2.0 mL) 
Patient Preparation: None

Sample Rejection:

Specimens collected with acid as preservative.
Mislabeled or unlabeled specimens.


Special Instructions: None

Specimen Transport Temperature

Analyte Stability:

Give specimen to Chemistry to perform a Creatinine upon receipt. Note Creatinine result, entire collection is then frozen. 

 

Day(s) Test Set Up

Day(s) Test Set Up: Monday-Friday
Cut-off time: 05:45 a.m.
Turnaround Time: 3-5 days

Reference Values

Reference Range: Interpretation report provided
Critical Values: None established


Limitations: Patients on MCT (medium chain triglyceride) oil exhibit a pattern consistent with that seen in MCAD deficiency. Any patient showing significant peaks of adipate, sebacate, and suberate should be investigated for MCT oil.

CPT Coding

CPT Codes: 83919