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LOINC Code 25705-5: Ketones 1 Hr post 50 g glucose PO Ql (U)

25705-5 is a LOINC code used to identify Ketones 1 Hr post 50 g glucose PO Ql (U) 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 Ketones^1H post 50 g glucose PO. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Ketones^1H post 50 g glucose PO. It is commonly used with the system or sample type Urine.

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: Observation

What it does not mean

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

Key facts

  • Ketones [Presence] in Urine --1 hour post 50 g glucose PO
  • Ketones^1H post 50 g glucose PO
  • 1 hour; 1.0Hr; 1h p 50 g Glc PO; 60 min; 60 minutes; 60M; 60min; Acetest; Acetoacetate; Acetoacetates; Acetone bodies; After; CHEMISTRY.CHALLENGE TESTING; Glu; Glu tol; Gluc; Glucose tolerance; Glucoseur; GTT; Ketone; Ketone bodies; Ordinal; p 50 g Glc; p 50 g Glc PO; Point in time; PR; PST; QL; Qual; Qualitative; Random; Screen; UA; UR; Urn

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

Ketones 1 Hr post 50 g glucose PO Ql (U)Ketones [Presence] in Urine --1 hour post 50 g glucose POKetones 1h p 50 g Glc PO Ur QlKetones^1H post 50 g glucose POCHALKetones 1 hr after 50 g glucose by mouth, UrinePrThr

Frequently asked questions

Code details

Code25705-5
SystemLOINC
Display nameKetones 1 Hr post 50 g glucose PO Ql (U)
DescriptionKetones^1H post 50 g glucose PO
Short nameKetones 1h p 50 g Glc PO Ur Ql
ComponentKetones^1H post 50 g glucose PO
PropertyPrThr
TimingPt
System (specimen)Urine
ScaleOrd
ClassCHAL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.56

Consumer names

Ketones 1 hr after 50 g glucose by mouth, Urine

Part names

Ketones^1H post 50 g glucose POPrThrPtUrineOrdPresence or ThresholdPoint in time (spot)

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.