Sodium, Blood
Tests:Sodium, Blood
Overview | |
|---|---|
| Department | Biochemistry |
| Test Code | |
| Synonyms | Blood Gas Sodium
BGNA |
| Availability | Monday - Sunday, testing routinely available out of hours |
| Turnaround Time | 30 mins - 1 hr |
| Stability – Add test | |
Specimen Requirements | |
| Specimen | Whole blood |
| Preferred | 1.0 mL in heparinised syringe |
| Acceptable | |
| Unacceptable | Clotted samples
Samples with needle attached |
| Specimen Transportation | Must arrive in lab within 15 min of collection. |
| Paediatric Requirements | 0.1 mL in blood gas capillary |
Aliquot Requirements | |
| Sample | Whole Blood |
| Preferred Volume | 1.0 mL whole blood in heparinised syringe |
| Minimum Volume | 0.1 mL in blood gas capillary |
| Aliquot Transportation | Sample must be kept anaerobic |
Clinical Information | |
| Reference Intervals | Reference Range 135 - 145 mmol/L |
| Test Method | Radiometer ABL 90 FLEX via direct ion selective electrode. |
| Advanced Notice | Not required |
| Patient Preparation | Not required |
Comments | |
| Treat as urgent.
All blood gas samples will automatically have a whole blood sodium reported. | |
| Owner | Clair Crossley (Crossley1) |
|---|---|
| Last reviewed | 14.09.2026 |
| Next review | 14.09.2027 (OK) |