Item Value
Test name Sodium, whole blood
Available Stat? Yes
Turn around times Stat 15 min, Routine 30 min
In House Availability Test available 24 hours per day 7 days per week
Performed by
Parnassus Parnassus Chemistry
Mount Zion MtZ Clinical Laboratory
Mission Bay Hospital Laboratory

Normal range 136-146 mmol/L
Container type ABG syringe containing 100U of dry heparin
Amount to Collect 3 mL blood
Collection Instructions Venous samples:
1. Avoid excessive venous stasis from prolonged tourniquet application or clenching of the fist prior to sample collection.
2. For central line draws make sure to waste a full red top tube then draw via the blood gas syringe as noted above.
3. Fill syringe completely, remove needle (in peripheral draws), cap sample, expel all bubbles (while holding syringe upright) until blood hits the top of cap.
4. Label sample with patient's name, ID number and DOB.

Deliver samples immediately to lab for testing. Send samples via pneumatic tube to Parnassus Chemistry station #151, Mission Bay station #21. Hand deliver samples to Mount Zion Lab, B bldg, second floor.
Sample type Heparinized whole blood (Blood gas syringe only)

If you have additional questions regarding this test, please call: 415-353-1667