Potassium K
Method(s) | Ion Selective Electrode |
---|---|
Specimen Required | |
Collect | One 5 mL gold (SST) top tube. Also acceptable: heparinized plasma. |
Transport | 1 mL serum at 2-8ºC. |
Stability | Refrigerated: 7 days; Frozen: 30 days |
Schedule | Daily-24 hours per day |
Billing Code | 1010051 |
CPTCode | 84132 |
Notes | See also entry for Plasma Potassium for use when plasma K is specifically requested in conjunction with or in place of serum K. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
3.5 - 5.1 mmol/L |