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Test Code 8317 Sodium (Blood)

Important Note

Available individually or as part of an Electrolyte Panel, BMP or CMP. 

Purpose

Examining electrolytes, acid-base balance; water balance; water intoxication; diagnosing dehydration. Hypernatremia occurs in dehydration. Hyponatremia occurs with nephrotic syndrome, cachexia, hypoproteinemia, intravenous glucose infusion, in congestive heart failure, and other clinical entities.

 

Performing Laboratory

Copley Hospital

 

Methodology

QuickLYTE (IMT Module)

 

Specimen Requirements

Specimen Type: Blood (Plasma or Serum)

Preferred: Light-Green Top

Acceptable: Gold Top

Specimen Volume: Full Tube

Specimen Minimum Volume: 2 mL

 

Collection Instructions:

1. Label specimen with patient’s full name, date of birth,

    date & time of collection and person collecting.

2. If delay in specimen transport > 1 hour, centrifuge tube.

3. Refrigerate specimen during transport.

 

Reference Values

Normal: 136 - 145 mmol / L

Critical: < 125 or > 155 mmol/L

 

Stability

Refrigerated: 7 Days

 

Day(s) Performed

Daily

Available STAT

Analytical Time: 1 Day

 

Aliases

Sodium (Blood)

Sodium

Na

 

Test Classification & CPT Coding

84295