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HelpTest Code 4010143 Potassium
Specimen Requirements
1.0 mL serum or plasma
NOTE: Serum/plasma should be separated from
cells within 1 hour of collection.
Container
PST (light green top) tube or SST (tiger, gold, or red top) tube
Minimum Volume
100 µL serum/plasma
Stability
1 week at room temperature or 2-8°C
Analytical Time
Same day
Available stat
Sample Retention Time
7 days
Method
Indirect Potentiometry
CPT Code
84132
Performing Laboratory
Springfield Hospital Laboratory
Reject Due To
Improperly labeled sample
Hemolysis