Organic Acids, Plasma
Ordering Recommendation
For routine biochemical screening, refer to Organic Acids, Urine (0098389).
Gas Chromatography/Mass Spectrometry
3-15 days  
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Green (sodium or lithium heparin).  
Specimen Preparation
Separate plasma from cells within one hour of collection. Transfer 3 mL plasma to an ARUP Standard Transport Tube. (Min: 2 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g. TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site at or by contacting ARUP Client Services.  
After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month  
Reference Interval
By report  
Interpretive Data

See Compliance Statement B:
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.
Organic Acids, Urine (ARUP test code 0098389), is the preferred test when screening for inherited disorders of metabolism. This plasma test is not as sensitive and will only detect the organic acids listed on the report.
CPT Code(s)
Component Test Code*Component Chart Name
0081044Lactic Acid, Plasma
0081045Pyruvic Acid, Plasma
0081046Succinic Acid, Plasma
00810473-OH-Butyric Acid, Plasma
0081048Acetoacetic Acid, Plasma
00810492-Keto-3-methylvaleric Acid, Plasma
00810502-Ketoisocaproic Acid, Plasma
00810512-Ketoisovaleric Acid, Plasma
0081052Citric Acid, Plasma
0098972Organic Acids, Plasma Interpretation
* 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.
  • Plasma organic acids