Potassium, Plasma
Tests:Potassium, Plasma
Overview | |
|---|---|
| Department | Biochemistry |
| Test Code | PPOT |
| Constituent Tests | Anion Gap
Electrolytes |
| Synonyms | Electrolytes (includes Na)
Na & K |
| Availability | Monday - Sunday, testing routinely available out of hours |
| Turnaround Time | 1 – 4hrs |
| Stability – Add test | 3 hrs |
Specimen Requirements | |
| Specimen | Plasma
Serum |
| Preferred | 6 mL Plain Red-Top |
| Acceptable | 4 mL Li-Heparin Green-Top |
| Unacceptable | Moderately and grossly haemolysed samples |
| Specimen Transportation | |
| Paediatric Requirements | 600 µL Li-Hep Microtainer |
Aliquot Requirements | |
| Sample | |
| Preferred Volume | |
| Minimum Volume | |
| Aliquot Transportation | |
Clinical Information | |
| Reference Intervals | All ages: 3.5 - 5.2 mmol/L |
| Test Method | Ion selective electrode (Indirect method) performed on the Abbott ci8200 analyser |
| Advanced Notice | |
| Patient Preparation | |
Comments | |
| Venostasis may cause up to 30% increase in 5 minutes.
Haemolysis, prolonged standing of specimen and/or squeezing of heel or finger (adding tissue fluid to the sample) during paediatric collects with give elevated results. | |
| Owner | Clair Crossley (Crossley1) |
|---|---|
| Last reviewed | 12.09.2025 |
| Next review | 12.09.2026 (Overdue) |