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Test Code 165 Ketone, Beta-Hydroxybutyrate, Blood (Beta-OHB)

Additional Codes


PowerChart: Beta Hydroxybutyrate Level

Epic: LAB2551 Beta Hydroxybutyrate

MA Cerner: Ketone Level.

Test Method

Electrode Potentiometry, Xceed Pro; Abbott

Specimen Requirement

Whole blood is required.

Additional Specimen Collection Information

Lithium heparin whole blood is the specimen of choice. Fresh capillary whole blood from a fingerstick collection is also acceptable.


Performed Monday through Sunday

Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

≤ 0.5 mmol/L

CPT Code Information

82010 Chemistry: Ketone body(s) (eg, acetone, acetoacetic acid, beta-hydroxybutyrate); quantitative

Useful For

Monitoring therapy for diabetic ketoacidosis

Investigating the differential diagnosis of any patient presenting to the emergency room with hypoglycemia, acidosis, suspected alcohol ingestion, or an unexplained increase in the anion gap

In pediatric patients, the presence or absence of ketonemia/uria is an essential component in the differential diagnosis of inborn errors of metabolism

Serum beta-hydroxybutyrate is a key parameter monitored during controlled 24-hour fasts


LOINC Code Information

66441-7 Beta Hydroxybutyrate [Moles/Volume] In Blood By Test Strip