Oxygen Saturation (SaO₂) via Pulse Oximetry Device Model Confirmation
This test measures how well your blood is carrying oxygen using a small sensor on your finger or ear lobe. It helps ensure the device is working correctly to monitor your oxygen levels safely.
["A reliable oxygen saturation reading is critical for detecting low oxygen levels, especially if you have conditions like heart or lung disease."]
Key facts at a glance
- LOINC
- 41927-5
- Short code
- SaO2% Device Model Cd
- Synonyms
- SaO2% Device Model Cd
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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 test uses a pulse oximeter—a non-invasive device—to measure the percentage of oxygen bound to hemoglobin in your blood. This is often called oxygen saturation (SaO₂). The device checks if the sensor is functioning properly by comparing readings against a known reference model.
Why It’s Done
Your healthcare provider may order this test to verify the accuracy of a pulse oximeter before or after use, especially if you have symptoms like shortness of breath, fatigue, or if you’re receiving oxygen therapy. It helps ensure the device is giving you trustworthy information about your oxygen levels.
How It’s Performed
You’ll place a small sensor on your finger, toe, or ear lobe. The device sends light through your blood vessels to measure oxygen levels. No preparation is needed, and it usually takes just a few seconds.
What to Expect
You may feel a slight pressure or warmth where the sensor is placed. The test is quick and painless. If you have nail polish or calluses, your provider may ask you to remove them or use a different sensor location.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low oxygen saturation (below 90%) can indicate serious health issues like severe lung disease, heart problems, or even low blood oxygen levels (hypoxia). A device confirmation test ensures you’re getting accurate readings, which is especially important if you rely on continuous monitoring, such as during sleep apnea treatment or after surgery.
Short name
SaO₂ Device Check
Frequently asked questions
Why might my doctor want to confirm the oxygen saturation reading from my pulse oximeter?
What does an abnormal oxygen saturation reading mean?
Can I use this test to monitor my oxygen levels at home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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