LOINC Code 73793-2: Signal quality Blood Postductal Pulse oximetry

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 Signal quality. It is commonly used with the system or sample type Bld.postductal.

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
• Method: Pulse oximetry

What it does not mean

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

Key facts

• Signal quality Blood Postductal Pulse oximetry
• Signal quality
• The signal quality indicates the strength or reliability of the measurement at a point in time. Postductal signal quality indicates that the pulse oximetry device is placed in an anatomical location whose blood supply originates from the aorta after the junction of the aorta with the ductus arteriosus (usually the right hand).
• Bld Postductal; Bld.foot; BldA.foot; Blood; Cardio; Cardiology; CARDIO-PULM; Finding; Findings; Heart Disease; Lung; Ordinal; Point in time; Postductal blood; PULMONARY; Pulmonology; PulseOx; Ql; Qual; Qualitative; Random; Respiratory; Screen; SpO2; 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