Reference Range

Arterial:
pH:
0-1 day: 7.26-7.49
1-7 days: 7.29-7.45
≥7 days: 7.35-7.45  

pCO2:
0-1 day: 27-40 mmHg
1-7 days: 27-41 mmHg
≥7 days: 35-45 mmHg

pO2:
0-1 day: 55-80 mmHg
1-7 days: 54-95 mmHg
≥7 days: 80-105 mmHg  

HCO3, Calculated: All Ages: 22-26 mmol/L
TCO2, Calculated: All Ages: 23-27 mmol/L
BE, Calculated: All Ages: -2 to +3 mmol/L
sO2, Calculated: All Ages: 95-98%
Sodium: All Ages: 136-145 mmol/L

Potassium:
0-8 days 3.2-5.5 mmol/L
8 days - 1 months: 3.4-6.0 mmol/L
1-6 months: 3.5-5.6 mmol/L
6 months-1 year: 3.5-6.1 mmol/L
1-17 y:ears 3.3-4.6 mmol/L
≥17 years: 3.5-5.0 mmol/L

Glucose Fasting:
0-1 day: 40-100 mg/dL
1-8 days: 50-100 mg/dL
≥8 days: 70-100 mg/dL

Calcium, Ionized:
0-1 month: 1.0-1.5 mmol/L
1-6 months: 0.95-1.5 mmol/L
≥6 months: 1.12-1.32 mmol/L

Hematocrit:
0-3 months: 28.0-42.0%
3-6 months: 29.0-41.0%
6 months-2 years: 33.0-39.0%
2-6 years: 34.0-40.0%
6-12 years: 35.0-45.0%
12-18 years: 37.0-49.0%
≥18 years: 39.5-50.2%

Venous: All Ages:

pH: 7.31-7.41
pCO2: All Ages: 41-51 mmHg
pO2:N/A
HCO3, Calculated: All Ages: 23-28 mmol/L
TCO2, Calculated: All Ages: 24-29 mmol/L
BE, Calculated: All Ages: -2 to +3 mmol/L
sO2, Calculated: N/A
Sodium: All Ages: 136-145 mmol/L

Potassium:
0-8 days: 3.2-55 mmol/L
8 days- 1 months: 3.4-6.0 mmol/L
1-6 months: 3.5-5.6 mmol/L
6 months-1 y: 3.5-6.1 mmol/L
1-17 years: 3.3-4.6 mmol/L
≥17 years: 3.5-5.0 mmol/L

Glucose: Fasting:
0-1 day: 40-100 mg/dL
1-8 days: 50-100 mg/dL
≥8 days: 70-100 mg/dL

Calcium, Ionized:
0-1 month: 1.0-1.5 mmol/L
1-6 months: 0.95-1.5 mmol/L
≥6 months: 1.12-1.32 mmol/L  

Hematocrit:
0-3 months: 28.0-42.0%
3-6 months: 29.0-41.0%
6 months-2 years: 33.0-39.0%
2-6 years: 34.0-40.0%
6-12 years: 35.0-45.0%
12-18 years: 37.0-49.0%
≥18 years: 39.5-50.2%