LOINC Code 69964-5: HCO3 standard (P) [Moles/Vol]

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 Bicarbonate^^standard. It is commonly used with the system or sample type Plas.

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

• Bicarbonate [Moles/volume] standard in Plasma
• Bicarbonate^^standard
• Concentration of bicarbonate in plasma separated anaerobically from whole blood at 38 degree Celsius and equilibrated at a pCO2 of 40 mm Hg with the blood Hb fully saturated with oxygen. It is a measure of the acid-base balance in a sample of blood after the correction of a respiratory disorder. As a result, abnormal values for standard bicarbonate reflect only the metabolic component of an acid-base disturbance. Elevation indicates metabolic alkalosis, while depression indicates metabolic acidosis.
• BIC; bicar; Bicarb; Chemistry; HCO3; Level; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; std; Substance Concentration

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.

Related SNOMED CT concepts

Related observations and tests

Common synonyms

Frequently asked questions