Oxygen^^saturation adjusted to 0.5

ChemistryAlso known as: pO2 satn adj to 0.5 BldAlso known as: pO2 satn adj to 0.5 BldAAlso known as: pO2 satn adj to 0.5 BldCmm[Hg]

Measures the oxygen pressure at which hemoglobin is 50% saturated.

Normal Range
Consult your provider
mm[Hg]
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

This value reflects how efficiently hemoglobin delivers oxygen to tissues. Abnormal results may indicate respiratory disease, heart disease, or hemoglobin dysfunction, requiring prompt medical evaluation and management.

Overview

This specialized blood gas measurement indicates the partial pressure of oxygen (pO2) at which hemoglobin reaches 50% saturation—a value that reflects hemoglobin's oxygen-carrying efficiency. This adjusted measurement helps assess how readily hemoglobin releases oxygen to tissues. Abnormal values may indicate lung disease, heart conditions, altitude-related changes, or hemoglobin abnormalities. This test is primarily used in clinical settings for respiratory and critical care assessment.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

19214-6Primary
Oxygen [Partial pressure] saturation adjusted to 0.5 in Arterial blood
mm[Hg]
65343-6
Oxygen [Partial pressure] saturation adjusted to 0.5 in Blood
mm[Hg]
19216-1
Oxygen [Partial pressure] saturation adjusted to 0.5 in Venous blood
mm[Hg]
19215-3
Oxygen [Partial pressure] saturation adjusted to 0.5 in Capillary blood
mm[Hg]
19217-9
Oxygen [Partial pressure] saturation adjusted to 0.5 in Mixed venous blood
mm[Hg]

Available Lab Tests

Order tests that measure this biomarker

Advanced Cardiovascular Health Comprehensive

$526.57

Advanced Liver Health Basic

$293.92

Advanced Liver Health Comprehensive

$1044.34

Iron and Total Iron Binding Capacity (TIBC)

$17.77
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Oxygen^^saturation adjusted to 0.5: Normal Range, Testing & Clinical Significance | Healos | Ltrl