|Plasma Separator Tube 4.5 mL
Call laboratory for additional acceptable specimen collection containers.
3 mL whole blood in light green top tube or ONE
Microtainer® for pediatric patients.
Sodium heparin is not acceptable (elevates Na)
24 hrs/day, 7 days a week, including holidays.
1 hour (upon receipt in laboratory)
Pediatric Reference Ranges:
Age Range Units
Premature 130-140 mEq/L
Critical value: <120 mEq/L and >160 mEq/L
This test is also performed in the Iowa
River Landing (IRL) clinical laboratory (for specimens drawn at that
Patients over a wide anion gap range demonstrated no significant
Ion Selective Electrode