LOINC Code 50187-4: Arterial-mixed venous oxygen saturation difference

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 Arterial-mixed venous oxygen saturation difference. 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: Observation

What it does not mean

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

Key facts

• Arterial-mixed venous oxygen saturation difference
• The difference between the arterial and mixed venous hemoglobin oxygen saturation, which gauges the O2 removal during blood circulation.
• Art-mixed ven O2 sat diff; avDsO2; Blood; Hemodynamics; HEMODYNAMICS.MOLEC; Mass Fraction; O2; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; SaO2; SAT; Satn; SO2; tO2; 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

Frequently asked questions