Oxygen Saturation (Arterial)
Critical Care - Relocated to Core Laboratory
Whole Blood (syringe only)
|Lithium/Sodium Heparin syringe
0.5 mL in Lithium/Sodium Heparin syringes ONLY. No air bubbles in
Deliver to laboratory immediately after collection.
24 hrs/day, 7 days a week, including holidays.
10 minutes (upon receipt in laboratory)
Critical Value: <70%
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
This test is also performed in the
Iowa River Landing (IRL) clinical laboratory (for specimens drawn at