Explore this test

  • Test Details
  • Lab Values
  • Clinical Significance
  • Treatment Options
DOWNLOAD SPECIMEN PREP FLYER

Explore this test

Test Code 1021

Test Details

Sodium

Sodium is an electrolyte present in all body fluids and is vital to normal body function, including nerve and muscle function. It helps cells function normally and helps regulate the amount of fluid in the body.

Methodology

Ion Selective Electrode (ISE)

Patient Preparation

None

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 14 days

Lab Values

Lab Values

Sodium

  • Low: <135 mmol/L
  • Normal: 135-146 mmol/L
  • High: >146 mmol/L
  • Alert: ≤120 or ≥160 mmol/L
Test Details
Clinical Significance

Clinical Significance

Sodium

  • May be used to detect the cause and help monitor treatment plan for patients with abnormal levels.
  • Elevated levels of sodium could indicate hypernatremia or dehydration.
  • Low levels could indicate hyponatremia, fluid retention or too much water intake.
Lab Values
Treatment Options

Treatment Options

Sodium

Assess etiology of elevation such as dehydration, vomiting, medications, and kidney problems that may be results of abnormal electrolyte imbalance.

Clinical Significance