A patient is admitted to the emergency department (ED) in respiratory distress. The results of his first arterial blood gases were pH = 7.30; PCO2 = 40; HCO3 = 19 mEq/L; PO2 = 80
The nurse evaluates the patient's treatment plan by examining repeat arterial blood gases (ABGs). The results are pH = 7.38; PCO2 = 32; HCO3 = 19 mEq/L. The nurse concludes which of the following?
a. Respiratory acidosis; the treatment plan is ineffective.
b. Metabolic alkalosis; the treatment plan is effective.
c. Partial compensation; the treatment plan is ineffective.
d. Complete compensation; the treatment plan is effective.
D
Complete compensation has occurred as the PCO2 has returned the pH to the normal range. This change indicates that the treatment plan is effective. Partial compensation would be indicated by changes in the PCO2 but the pH would still be outside the normal range. The ABG is now complete compensation metabolic acidosis.
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