Container/Tube: Serum or plasma
Specimen Volume: 3.5mL or 5 mL
Transport Temperature: Refrigerated
Collection Instructions: Centrifuge specimens and remove the serum or plasma from the cellular material within 4 hours of collection.
Stability
| Storage | Temperature | Stability |
| Room Temperature | 18-28 °C (64-82 °F) | ≤ 7 days |
| Refrigerated | 2-8 °C (36-46 °F) | ≤ 4 weeks |
| Frozen | ≤ Negative 18 °C (≤0 °F) | Indefinite |
Potentiometric Ion-Selective Electrodes (ISE)
98-109 mmol/L
Critical values (automatic call-back): <80 mmol/L or >130 mmol/L
Monday through Sunday
Available STAT
82435