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Test Code NA Sodium, Plasma

Performing Laboratory

NRL-Chemistry

Methodology

Ion-Selective Electrode (ISE)

Note: This test is also available as part of #BMP Basic Metabolic Panel, #COMP Comprehensive Metabolic Panel, #LYTES Electrolyte Panel, and  #RENAL Renal Function Panel. See Common Panel Test Combinations in Special Instructions to avoid duplicate test requests when multiple panels are ordered.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin)

Specimen Volume: 2 mL

Reference Values

135-145 mmol/L

Critical values (automatic call-back): ≤124 mmol/L or ≥155 mmol/L

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:

STAT-45 minutes

Routine-shift

Specimen Transport Temperature

Refrigerate

Test Classification and CPT Coding

84295

Special Instructions