Sign in →

Test Code NA Sodium

Specimen Type

Blood

Container

Mint green top with gel separator

Preferred Volume

4 mL

Availability

24/7

Turnaround Time

3 hours

STAT Availability

Available

Test Usage

Sodium measurements are used in the diagnosis and treatment of aldosteronism (excessive secretion of the hormone aldosterone), diabetes insipidus (chronic excretion of large amounts of dilute urine, accompanied by extreme thirst), adrenal hypertension, Addison’s disease (caused by destruction of the adrenal glands), dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.

Test Methodology

ion selective electrode

CPT Code

84295

STAT Turnaround Time

1 hour

Minimum Volume

2 mL

Reference Range

134 – 149 mEq/L

Critical Results

<120 mEq/L or >160 mEq/L

Test Limitations

Pseudohyponatremia may be seen with grossly lipemic specimens as a result of fluid displacement.

Test Includes

quantitative determination of sodium in plasma

Fee Code

43432