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Test Code LYTS Electrolyte Panel

Specimen Type

Plasma

Container/Tube

Li-Heparin,  Mint Green Top

Offsite Collection Instructions

1. Collect sample following standard collection methods
2. Within 2 hours of collection the sample must be spun and aliquoted
3. Transport refrigerated  (2 – 8˚C).

Turnaround Time

4 hours

Test Includes

Sodium, Potatssium, Chloride, Carbon Dioxide, Anion Gap (IGAP) Calculation

Preferred Volume

0.5 mL

STAT Turnaround Time

1 hour

Test Usage

Addison’s disease (caused by destruction of the adrenal glands), dehydration, inappropriate antidiuretic hormone secretion,
or other diseases involving electrolyte imbalance.

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.

Potassium measurements are used to monitor electrolyte balance in the diagnosis and treatment of disease conditions characterized by low or high blood potassium levels.

Chloride measurements are used in the diagnosis and treatment of electrolyte and metabolic disorders such as cystic fibrosis and diabetic acidosis.

Test Limitations

Do not allow serum to remain on the cells after centrifugation.
Potassium from the red cells will diffuse into the serum giving falsely elevated results.

Gross lipemia causes pseudohyponatremia.

Hemolysis will result in elevation of potassium results. Release of potassium from as few as 0.5% of the erythrocytes (from specimen collection) can increase the serum level by 0.5 mmol/L.

Coverage Information

N/A

Fee Code

43272

Specimen Minimum Volume

0.2 mL

DAY(S) AND TIME(S) PERFORMED

24 hours, 7 days a week including holidays.

STAT DAY(S) AND TIME(S) PERFORMED

Avaliable

CPT

80051

Method Name

See Individual tests for Methodology

Reference Values

See Individual Analytes for Reference Values.

The Reference Range for the calculated anion gap (IGAP) result is 6 – 15 mEq/L.

Reject Due To

Whole blood/unspun samples greater than 6 hours will be rejected.

Grossly hemolyzed specimens are rejected.

Synonyms

N/A

UCMC Collection Instructions

1. Collect sample following standard collection methods
2. Within 2 hours of collection the sample must be received in Laboratory Service Center
3. Transport room temperature (15 – 25˚C).

Additional Information

The anion gap (IGAP) is calculated as [Na] – [Cl + HCO3].

Included in Additional codes

N/A

Stability: Room Temp

See individual analytes for stability information