Test Code NA Sodium, Plasma or Serum

Methodology

Ion-Selective Electrode (ISE)

Munson Healthcare Laboratories

Submit only 1 of the following specimens:

Plasma

Container/Tube: Green-top (heparin) gel tube

Specimen Volume: 0.5 mL of heparinized plasma
Transport Temperature: Refrigerate
Collection Instructions: Forward promptly.

Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).

Serum
Container/Tube: Gold-top serum gel tube

Specimen Volume: 0.5 mL of serum
Transport Temperature: Refrigerate
Collection Instructions: Forward promptly.

Note: 1. Indicate serum.
2. Label specimen appropriately (serum).

136-144 mmol/L

Critical values (automatic call-back):

Critical value (automatic call-back):

Pediatric patients up to 21 years old: ≤ 125 mmol/L, ≥ 155 mmol/L

Patients 21 years and older: ≤ 120 mmol/L, ≥ 160 mmolL

Monday through Sunday

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