Answer: A- Values that include an ABG of pH 7.21, CO2 85, HCO3 29, PaO2 48 indicate a patient is not responding to noninvasive treatment and in need of mechanical ventilation.A patient with an ABG of pH 7.21, CO2 85, HCO3 29 and PaO2 of 48 is hypercapnic. The patient is in acute respiratory failure. The pH at 7.21 and CO2 of 80 indicate the patient is unable to ventilate adequately and needs prompt intubation and mechanical ventilation.

pH 7.21, CO2 85, HCO3 29, PaO2 48

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Respiratory Therapist

Category - Initiation and Modification of Interventions

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Which of the following blood gas measurements indicate a patient in acute ventilatory failure and will need to be changed from noninvasive respiratory treat to intubation and mechanical ventilation?

pH 7.21, CO₂ 85, HCO3 29, PaO₂ 48
pH 7.45, CO₂ 55, HCO3 27, PaO₂ 89
pH 7.39, CO₂ 46, HCO3 26, PaO₂ 91
pH 7.41, CO₂ 41, HCO3 25, PaO₂ 85

Explanation

Answer: A- Values that include an ABG of pH 7.21, CO₂ 85, HCO3 29, PaO₂ 48 indicate a patient is not responding to noninvasive treatment and in need of mechanical ventilation.

A patient with an ABG of pH 7.21, CO₂ 85, HCO3 29 and PaO₂ of 48 is hypercapnic. The patient is in acute respiratory failure. The pH at 7.21 and CO₂ of 80 indicate the patient is unable to ventilate adequately and needs prompt intubation and mechanical ventilation.

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