LOINCActive

LOINC Code 19951-3: Oxyhemoglobin/Hemoglobin.total (8 hour minimum) in Arterial blood

19951-3 is a LOINC code used to identify Oxyhemoglobin/Hemoglobin.total (8 hour minimum) in Arterial blood 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 Oxyhemoglobin/Hemoglobin.total. It is commonly used with the system or sample type BldA.

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Oxyhemoglobin/Hemoglobin.total. It is commonly used with the system or sample type BldA.

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

What it does not mean

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

Key facts

  • Oxyhemoglobin/Hemoglobin.total (8 hour minimum) in Arterial blood
  • Oxyhemoglobin/Hemoglobin.total
  • 1/3 day; 8 hours; 8HR; ABG; ART; Art bld; Art blood; Arterial; Arterial blood; Blood arterial; FO2Hb; Fractional hemoglobin; Haemoglobin; Haemoglobin oxygenated; Hb; HbO2; Hemoglobin oxygenated; Hgb; Lung; Mass Fraction; Minimal; minimum; O2 saturation; O2Hb; Oxygen saturation; Oxygenated haemoglobin; Oxygenated hemoglobin; Oxyhaemoglobin; OxyHgb; OxyHgb %; Percent; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Respiratory; SaO2; SO2; Tot; Totl

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

Oxyhemoglobin/Hemoglobin.total (8 hour minimum) in Arterial bloodOxyHgb 8h Min % BldAOxyhemoglobin/Hemoglobin.totalPULMMFr8H^minBldA

Frequently asked questions

Code details

Code19951-3
SystemLOINC
Display nameOxyhemoglobin/Hemoglobin.total (8 hour minimum) in Arterial blood
DescriptionOxyhemoglobin/Hemoglobin.total
Short nameOxyHgb 8h Min % BldA
ComponentOxyhemoglobin/Hemoglobin.total
PropertyMFr
Timing8H^min
System (specimen)BldA
ScaleQn
ClassPULM
Example units%
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.54

Part names

Oxyhemoglobin/Hemoglobin.totalMFr8H^minBldAQnMass fraction8HminBlood arterial

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.