Oxygen Saturation (Arterial)

Label Mnemonic:	AOS
Epic code:	LAB566
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Critical Care - Relocated to Core Laboratory
6240 RCP
356-3527

Specimen(s):

Whole Blood (syringe only)

Collection Medium:

Lithium/Sodium Heparin syringe

Minimum:

0.5 mL in Lithium/Sodium Heparin syringes ONLY. No air bubbles in syringe.

Delivery Instructions:

Deliver to laboratory immediately after collection.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

10 minutes (upon receipt in laboratory)

Reference Range:

94-100%
Critical Value: <70%

Comments:

Can be ordered with blood gases (0.5 mL blood required); all needles must be removed from the syringe before delivery. Samples that contain greater than 25% air to sample volume ratio will not be analyzed.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).

Methodology:

Oximetric

CPT Code:

82810

See Additional Information:
Specimens Requiring Immediate Delivery