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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: O2 Saturation

Test Code(s): OSAT / HCOSAT

CPT Code(s): 82810

Test Description: Test Component:

Oxygen saturation and oxygen content.


Methodology: Spectrophotometry

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: Up to 30 minutes. All requests processed stat.


Specimen Requirements

Specimen: Arterial, venous, or capillary

Patient Preparation: None.  For venous samples on outpatients, send patient to UWHC Outpatient Phlebotomy to be drawn.

Collection Instructions: Radiometer "PICO"® syringes must be free of bubbles and clots.  Two full Radiometer capillaries free of air bubbles and clots are needed for capillary blood.

Collection Container: Preferred: Radiometer PICO® syringe
Also Acceptable: 2 full Radiometer capillary tubes

Collection Volume: Preferred: 1.5 mL
Pediatrics: 0.5 mL

Sample Analyzed: Whole Blood

Volume Required: Preferred: 1.5 mL
Pediatrics: 0.5 mL

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220) immediately.  Specimen must arrive in the UWHC Core Lab within 30 minutes.

Unacceptable Criteria: Clotted specimens, specimens with air or specimens past stability time are not acceptable.

Stability: Ambient: 1 hour
Frozen: Not acceptable


Interpretation

Reference Interval:
 Arterial specimens:    
     
 Oxygen saturation 0 days to 30 days: 85.0-90.0% 
  31 days and up: 95.0-98.0%
     
 Oxygen content 1 year and up:  15.0-22.0 mL/dL

    

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