Blood Gas Values Flashcards by Christina Robson

7.40 mmHg

Range: 7.35-7.45 mmHg

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PaCO2

40 mmHg

Range: 35-45 mmHg

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PaCO2 (Newborn Normal)

<50 mmHg

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PaO2

97 mmHg

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Normal PaO2 Range

80-100 mmHg

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Mild Hypoxemia - PaO2 Range

60-79 mmHg

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Moderate Hypoxemia - PaO2 Range

40-59 mmHg

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Severe Hypoxemia - PaO2 Range

<40 mmHg

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PaO2 (Newborn Normal)

> 60 mmHg

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PaO2 >100 in the presence of O2 therapy indicates what?

Excessively corrected hypoxemia

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Another term for mmHg?

Torr

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HCO3

24 mEq/L

Range: 22-26 mEq/L

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0 mEq/L

Range: +/-2 mEq/L

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SaO2 Definition & How is it Measured?

Saturation of arterial blood with oxygen

Calculated from an arterial blood gas (ABG)

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SpO2 Definition & How is it Measured?

Saturation of arterial blood with oxygen (P stands for pulse)

Measured with a sensor worn by the pt (Pulseox)

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SaO2 - Normal

98%

Range: 95-100%

SaO2 - Preemie

88-95%

SaO2 - PALS Guidelines

94-99%

How do you calculate SaO2?

SaO2 = PaO2 + 30

SpO2 - Normal

93-98%

SpO2 values when Carbon Monoxide is present?

Higher than reality when present

MetHb

<1%

Carboxyhemoglobin Level (COHb) - Normal

1-3%

Carboxyhemoglobin Level (COHb) - Smokers

5-10%

Carboxyhemoglobin Level (COHb) - Heavy Smokers

10-15%

PETCO2 (End Tidal CO2) - Normal

34-36 mmHg Or 3-5%

PETCO2 normally reads what compared to PaCO2?

Reads 5-10 less than PaCO2

>15 difference in PETCO2 (End Tidal CO2) vs PaCO2, indicates what?

Pulmonary Embolism