LOINC Code 16904-5: Glucose 1st specimen post Unsp challenge Ql (U)

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 Glucose^1st specimen post XXX challenge. 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

• Glucose [Presence] in Urine --1st specimen post XXX challenge
• Glucose^1st specimen post XXX challenge
• Acute specimen; After; CHEMISTRY.CHALLENGE TESTING; First; Glu; Glu tol; Gluc; Glucose tolerance; Glucoseur; GTT; Ordinal; p chal; Point in time; PR; Pre immunization; PST; QL; Qual; Qualitative; Random; Screen; sp1; sp1 p chal; Spec; 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

Frequently asked questions