Carbon Monoxide Poisoning



Arterial Blood Gas Measurements - Normal / Reference Human Ranges:

Parameter, Unit ............. NewbornInfantChildAdult
pH 7.20 - 7.30 7.30 - 7.35 7.35 - 7.45 7.35 - 7.45
PaCO2 mmHg 45 - 55 35 - 45 35 - 45 35 - 45
PaO2 mmHg <60 80 - 100 80 - 100 90 - 100
HCO3 mEq/L . 18 - 27 18 - 27 20 - 28
Base Excess (BE) mEq/L . . . +/-2.0
Na+ mEq/L 135 - 145 135 - 145 135 - 145 134 - 147
K+ mEq/L 3.50 - 5.00 3.50 - 5.00 3.50 - 5.00 3.50 - 5.00
Ca++ mEq/L 1.16 - 1.30 1.16 - 1.30 1.16 - 1.30 1.16 - 1.30
total Hb g/dl 7.0 - 22.0 7.0 - 22.0 7.0 - 22.0 14 - 18
SaO2 % >97.5 >97.5 >97.5 >97.5
SaCO % . . . 0.4 - 1.4
MetHb % . . . <1.0
CaO2 ml/dl . . . 20.0
PvO2* mmHg . . . 35 - 45
SvO2* % . . . 75


* Venous values
Abbreviations: Pa = partial pressure, arterial; Hb = hemoglobin; Sa = saturation, arterial; Ca = content, arterial; partial pressure, venous; Sv = saturation, venous


For Diagnostic Tests in CO Poisoning


...... last changed 07/30/01



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