An elderly postoperative patient without known respiratory or central nervous system disease cannot be extubated in the postanesthesia recovery unit due to abnormal ABG results
The patient does not respond to the nurse's commands and has a respiratory rate of 10. What ABG results might the nurse expect? 1. pH 7.28; PaO2 80 mmHg; PaCO2 55 mmHg; HCO3 22 mmHg; SaO2 92%
2. pH 7.35; PaO2 58mmHg; PaCO2 36 mmHg; HCO3 25 mmHg; SaO2 85%
3. pH 7.42; PaO2 52mmHg; PaCO2 45 mmHg; HCO3 26 mmHg; SaO2 82%
4. pH 7.44; PaO2 59mmHg; PaCO2 50 mmHg; HCO3 25 mmHg; SaO2 89%
1
Rationale 1: The nurse would expect the oversedated, nonresponsive patient to potentially have hypercapnia resulting from residual intraoperative medications and the inability to rid him- or herself of CO2.
Rationale 2: These results would indicate hypoxemic respiratory failure, an unlikely finding in a patient with no prior respiratory history.
Rationale 3: These results would indicate hypoxemic respiratory failure, an unlikely finding in a patient with no prior respiratory history.
Rationale 4: These results would indicate hypoxemic respiratory failure, an unlikely finding in a patient with no prior respiratory history.
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