The ICU nurse is caring for a patient who experienced trauma in a workplace accident. The patient is complaining of having trouble breathing with abdominal pain
An ABG reveals the following results: pH 7.28, PaCO2 50 mm Hg, HCO3- 23 mEq/L. The nurse should recognize the likelihood of what acid–base disorder?
A) Respiratory acidosis
B) Metabolic alkalosis
C) Respiratory alkalosis
D) Mixed acid–base disorder
Ans: D
Feedback:
Patients can simultaneously experience two or more independent acid–base disorders. A normal pH in the presence of changes in the PaCO2 and plasma HCO3– concentration immediately suggests a mixed disorder, making the other options incorrect.
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