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HelpTest Code LAB4166 POTASSIUM
Specimen Type
Preferred Sample: Lithium Heparin Plasma (Mint Green Top, Dark Green Top)|
Alternative Sample: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)
Specimen Volume
1.0 mL
Minimum Volume
0.5 mL
Turnaround Time
STAT: 1 hour
Routine: 4 hours
Test Schedule
Daily and STAT
Sample Stability
Room Temperature: 1 Week
Refrigerated: 1 Week
Frozen: 1 Year
Method
Indirect ISE (Ion Selective Electrode)
Reference Ranges
| Potassium, mmol/L | |
| 0-28 Days | 3.7 - 5.9 |
| 28 Days-2 Years | 4.1 - 5.3 |
| 2-18 Years | 3.4 - 4.7 |
| >18 Years | 3.5 - 5.1 |
Synonyms
K, K+
Test Components
Potassium, mmol/L.
CPT Codes
84132