Electrolytes

Included Tests

Specimen Requirements

1.0 mL Plasma from a PST Mint Green Top Tube - Li Heparin (preferred)
or
1.0 mL Serum in a SST Gold Top Tube

Transport And Storage

2 days Refrigerated

4 hours on cells

Collection Instructions

 

Minimum Volume

0.8 mL Plasma or Serum

Neonatal Volume

0.4 mL Whole Blood Green Mircotainer

Reference Range:

Carbon Dioxide 
0 days to 1 year: 14 - 23 mmol/L
1 year to Adult: 21 - 29 mmol/L

Chloride
98 - 107 mmol/L

Potassium
1 day to 1 month: 4.0 - 6.0 mmol/L
1 month to 2 years: 3.8 - 5.6 mmol/L
> 2 years: 3.6 - 5.1 mmol/L

Sodium
1 day to 1 month: 133 - 150 mmol/L
1 month to Adult: 134 - 146 mmol/L

Anion Gap 9-16 mmoL

Critical Ranges:

Carbon Dioxide 
Low: < 10 mmol/L
High: > 45 mmol/L

Potassium
Low: < 2.5 mmol/L
High: > 6.0 mmol/L

Sodium
NICU (Infants in a Parkview Health Neonatal Intensive Care Unit): 
<125 mmol/L
>= 155 mmol/L

1 day to Adult:
Low: < 120 mmol/L
High: > 160 mmol/L

Test Comments:

Test can be reported with disclaimer if on cells for 4-6 hours

Methodology:

• Ion Selective Electrode (ISE)

CDM

01420181

CPT Coding

80051