LOINCActiveBoth

LOINC Code 72419-5: Beta hydroxybutyrate/Acetoacetate post meal (Bld) [Molar ratio]

72419-5 is a LOINC code used to identify Beta hydroxybutyrate/Acetoacetate post meal (Bld) [Molar ratio] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Beta hydroxybutyrate/Acetoacetate^post meal. It is commonly used with the system or sample type Bld.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Beta hydroxybutyrate/Acetoacetate^post meal. It is commonly used with the system or sample type Bld.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Both

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Beta hydroxybutyrate/Acetoacetate [Molar ratio] in Blood --post meal
  • Beta hydroxybutyrate/Acetoacetate^post meal
  • The hydroxybutyrate/acetoacetate ratio (ketone body ratio) is an expression of the mitochondrial oxido-reduction state that can provide a clue to diagnosis and metabolic status in congenital errors of the electron transport chain and pyruvate metabolism.
  • 3-hydroxybutyrate; 3-hydroxybutyric acid; 3-ketobutyrate; 3-oxobutyric acid; AcAc; Acetoacetates; Acetoacetic acid; After; B; Beta hydroxy butyrate; Beta hydroxybutyric acid; Betahydroxybutyrate; Betahydroxybutyric acid; Beta-ketobutyrate; BHB; Blood; BOHB; B-OH-Butyr; B-OH-Butyr+Acetoacet; CHEMISTRY.CHALLENGE TESTING; Diacetate; Diacetic acid; Hydroxybutyric acid; Ketone body ratio; oxobutyrate; p meal; PC; Point in time; Post Pran; Post prandial; PP; PST; QNT; Quan; Quant; Quantitative; Random; Scrto; Substance concentration ratio; Substance ratio; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Beta hydroxybutyrate/Acetoacetate post meal (Bld) [Molar ratio]Beta hydroxybutyrate/Acetoacetate [Molar ratio] in Blood --post mealB-OH-Butyr/Acetoacet p meal Bld-sRtoBeta hydroxybutyrate/Acetoacetate^post mealCHALBeta hydroxybutyrate/Acetoacetate - after Meal, BloodSRto

Frequently asked questions

Code details

Code72419-5
SystemLOINC
Display nameBeta hydroxybutyrate/Acetoacetate post meal (Bld) [Molar ratio]
DescriptionBeta hydroxybutyrate/Acetoacetate^post meal
Short nameB-OH-Butyr/Acetoacet p meal Bld-sRto
ComponentBeta hydroxybutyrate/Acetoacetate^post meal
PropertySRto
TimingPt
System (specimen)Bld
ScaleQn
ClassCHAL
Example unitsmmol/mmol
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.42
Last changed2.44

Consumer names

Beta hydroxybutyrate/Acetoacetate - after Meal, Blood

Part names

Beta hydroxybutyrate/Acetoacetate^post mealSRtoPtBldQnSubstance RatioPoint in time (spot)Blood

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 72419-5 | HealthAssure