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HelpTest Code Anion Gap Anion Gap
Performing Laboratory
| Memorial Hospital Laboratory- Automated Procedures | 304-388-5953 |
| General Hospital Laboratory | 304-388-6244 |
| Women and Children's Hospital Laboratory | 304-388-2385 |
| Teays Valley Hospital Laboratory | 304-757-1770 |
| Cancer Center Laboratory | 304-388-8317 |
| Plateau Medical Center Laboratory | 304-469-8621 |
| Greenbrier Valley Medical Center Laboratory | 304-647-6060 |
| Parkersburg Laboratory | 304-865-3679 |
| Beckley Cancer Center Laboratory | 304-461-2222 |
Specimen Requirements
Plasma- Mint Green, Dark Green Lithium Heparin or Serum- SST gold top, red top
Allow SST or red top to completely clot
Spin and physically separate plasma/serum from contact with cells as soon as possible
4 mL of plasma/serum (minimum 2 mL)
Specimen Rejection
- Improperly labeled, collected, stored, and transported
- Quantity not sufficient
- Hemolyzed
Storage and Stability
Refrigerate at 2-8oC up to 1 week
Reference Values
5-16 mmol/L
Methodology
Calculation: Na- (Cl + CO2)
Days Test Set Up and Turnaround
Monday through Sunday, Continuously
| AM Collection | Expected by 9AM same day |
| Routine | Expected within 24 hrs |
| Stat | Expected within 1 hr |
| Timed | Expected results are test dependant |
Parkersburg and Beckley Only- Monday-Friday