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Test Code LAB114 Potassium

Specimen Requirement

0.5 mL Lithium Heparin plasma; only PST acceptable

 

Hemolyzed specimens are not acceptable.

Avoid prolonged contact with red blood cells.

Specimen Stability

7 days at 2-8° C

7 days at 20-25° C

Testing Schedule

Daily

Reference Range

3.6 - 5.5 mmol/L

Testing Department

Chemistry

Method

Ion selective electrode dilute (Indirect)

CPT Code

84132