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Oxygen Saturation (SaO₂) from Device Sensor Report

Published: August 9, 2026Updated: August 16, 2026

This test measures the percentage of oxygen bound to hemoglobin in your blood, typically obtained from a portable device sensor during a clinical visit.

Quick summary

["Your blood’s oxygen levels are checked to ensure proper breathing and circulation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
73801-3
Short code
SaO2% Device SaO2% sensor wrp type
Synonyms
SaO2% Device SaO2% sensor wrp type
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85610
SNOMED
396252006
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The SaO₂ sensor report captures real-time oxygen saturation data from a device, reflecting how well oxygen is being delivered to your bloodstream. This is often used in quick assessments during exams or monitoring in clinical settings.

Why It’s Done

Healthcare providers may use this test to evaluate breathing efficiency, detect oxygen deficiencies, or assess responses to treatments, especially in cases of suspected respiratory issues.

How It’s Performed

A small sensor is placed on your finger or ear lobe to measure oxygen saturation. No blood draw is required, and results are displayed in real time.

What to Expect

You may feel a slight pinch or pressure from the sensor, but the procedure is quick and painless. Results are often reviewed immediately by your healthcare team.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: serum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

SaO₂ Device Report

Frequently asked questions

How low is too low? Low oxygen saturation (below ~90%) can indicate conditions like asthma, chronic obstructive pulmonary disease (COPD), or heart problems. High levels (above ~100%) may suggest polycythemia or other rare conditions.
This test is a quick screening tool and may not replace full blood gas analysis. If your results are abnormal, further testing or evaluation by a doctor is recommended.
What does an abnormal result mean?
An abnormal result could signal potential breathing difficulties or other health concerns. Your doctor will discuss findings with you and determine if additional tests or follow-up care is needed.
Can I get this test at home?
Some portable devices allow at-home use, but results should be reviewed by a healthcare provider for accurate interpretation. Always follow your doctor’s guidance.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy