Phenomena and Processes

Oxygen Saturation

Extent to which HEMOGLOBIN is saturated with OXYGEN typically as measured in arterial blood. It can be measured by various methods (e.g., PULSE OXYMETER, blood gas analysis). A low blood oxygen saturation level indicates a condition called HYPOXEMIA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Extent to which HEMOGLOBIN is saturated with OXYGEN typically as measured in arterial blood. It can be measured by various methods (e.g., PULSE OXYMETER, blood gas analysis). A low blood oxygen saturation level indicates a condition called HYPOXEMIA.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

9 entry terms
  • Saturation, Oxygen
  • Blood Oxygen Levels
  • Saturation of Peripheral Oxygen
  • SpO2
  • Blood Oxygen Level
  • Level, Blood Oxygen
  • Oxygen Level, Blood
  • Oxygen Saturation, Peripheral
  • Peripheral Oxygen Saturation

MeSH Record

Aspects Covered

5 allowable subheadings

Indexed with the subheadings drug effects, genetics, immunology, physiology, radiation effects.

MeSH Record

History Note

2022

MeSH Record

Previous Indexing

  • Oximetry (1963-2021)
  • Oxygen (1963-2021)

MeSH Hierarchy

Tree Number

  1. G03w.707w

AMA Style

References

  1. National Library of Medicine. Oxygen Saturation. Medical Subject Headings (MeSH). 2026. Unique ID D000089382. http://id.nlm.nih.gov/mesh/2026/D000089382
  2. Oxygen Saturation. In: Wikipedia. https://en.wikipedia.org/wiki/Oxygen_saturation_(medicine)
  3. Oxygen Saturation. In: Wikidata. https://www.wikidata.org/wiki/Q3045040