Sodium


Sunquest Code:NA  
Epic Code:LAB122Epic Name:Sodium
Order Instructions:Use test code NAW for whole blood testing.
Synonyms:NA Level; Electrolytes
Methodology:Indirect potentiometric
CPT Code:84295
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:UMMC only: Arterial or venous blood collected in a dry lithium heparin syringe for blood gas or ionized calcium analysis may be used for sodium, potassium, or glucose analysis simultaneously.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel) (Green (lithium heparin) on ICE, Red (no gel), Red or gold (gel), Dry heparin syringe)


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Chemistry  (University of Minnesota Health Maple Grove Clinics, Fairview Range - FRMC, UMMC-East Bank, Oxboro Bloom, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca GICH)


Interpretive

Critical Range:Sodium: less than 120 mmol/L and greater than 160 mmol/L
Reference Range:
Age mmol/L
0-30 days 133-146
1 mo-15 y 133-143
16 y and older 133-144
 GICH: All ages 134-144 mmol/L  
Use:Evaluate sodium metabolism and drugs or diseases that alter it.


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