Children's Mercy Hospitals and Clinics
Name
Sodium, Serum

CMH Lab Section
Chemistry

Specimen Requirements
0.2 mL of blood in a mint green (Lithium Heparin) or red top w/ yellow ring gel tube

Availability
STAT, Urgent, Routine

Turn Around Time
STAT: 1-hour
Routine: 2-4 hours

Methodology
Vitros Potentiometric

Ranges
Age Dependent
0-3mos: 132-142 mmol/L
> 3mos: 135-145
Critical Value: < 120 mmol/L (low) or > 150 mmol/L (high)

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