Children's Mercy Hospitals and Clinics
Name
Electrolytes, Whole Blood

CMH Lab Section
Chemistry

Specimen Requirements
0.3 mL blood in heparinized syringe or 2 mL blood in a green top (sodium heparin) tube

Availability
Stat, Urgent, Routine

Turn Around Time
15 minutes

Special Instructions
Includes: Chloride, Potassium, Sodium & ionized Calcium

Methodology
Radiometer ABL

Ranges
Chloride
all ages- 99-112 mmol/L

Potassium
0-3 mos: 3.5-6.2 mmol/L
>3 mos: 3.5-5.2 mmol/L
critical values
0-3 mos hemolyzed & non-hemolyzed: < 3.0 mmol/L or >7.0 mmol/L
> 3 mos non-hemolyzed: < 3.0 mmol/L or > 6.5 mmol/L
> 3 mos hemolyzed: < 3.0 mmol/L or > 7.0 mmol/L

Sodium
0-3 mos 132-142 mmol/L
>3 mos 135-145 mmol/L

ionized Calcium
all ages- 1.13-1.37 mmol/L mmol/L
critical values <0.85 mmol/L or >1.55 mmol/L

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