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Test Code Na SODIUM, SERUM

Patient Preparation

No special preparation required

Collection Method

Venous collection

Minimum Volume

Adults

1.0 mL

Pediatric

0.5 mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimen(s)

Serum:
-Gold Top SST
-Red Top


Plasma:
-Lt Green top (lithium heparin)

Reference or Target Ranges

Sodium:

136 – 145 mmol/L

Reportable Units

mmol/L

Critical Value

≤ 120 mmol/L

≥160 mmol/L

Reasons for Rejection

Hemolysis Threshold:

750 mg/dL

Icterus Threshold:

60 mg/dL

Lipemia Threshold:

3000 mg/dL

Other:

QNS, contaminated, improperly labeled, improper specimen type 

Specimen Stability

Refrigerated

7 Days

Frozen                     

30 Days

Performance Information

Days and Time Performed

24/7

Expected Turn Around Time

Stat: 1 Hour, Routine: 4 Hours

Stat Availability

Yes

Performing Bench

CRMC Chemistry

Methodology/Method Description

Atellica

Methodology/Method Description

Atellica CH Analyzer

CPT Codes

84295