Answer: A - pH 7.23, CO2 79, HCO3 29, PaO2 47 indicates a hypercapnic patient.The value of PaCO2 79 mmHg is greater than a normal value (PaCO2 less than (<) 35 mmHg) which indicates the patient is hypoventilating.

pH 7.23, CO2 79, HCO3 29, PaO2 47

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Respiratory Therapist

Category - Patient Evaluations and Recommendations

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Which of the following arterial blood gas results indicate a hypercapnic patient?

pH 7.23, CO₂ 79, HCO₃ 29, PaO₂ 47
pH 7.51, CO₂ 41, HCO₃ 23, PaO₂ 91
pH 7.47, CO₂ 38, HCO₃28, PaO₂ 97
None of the above

Explanation

Answer: A - pH 7.23, CO₂ 79, HCO₃ 29, PaO₂ 47 indicates a hypercapnic patient.

The value of PaCO₂ 79 mmHg is greater than a normal value (PaCO₂ less than (<) 35 mmHg) which indicates the patient is hypoventilating.

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