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Daily #200 · Respiratory · Archive

NCLEX-RN® question of the day

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The question

A nurse in the emergency department is caring for a 58-year-old client who experienced a witnessed cardiac arrest and was resuscitated after two rounds of CPR and defibrillation. Post-resuscitation arterial blood gas results are: pH 7.22, PaCO2 52 mmHg, HCO3 18 mEq/L, PaO2 68 mmHg, SaO2 91%. The client is now intubated and on mechanical ventilation with a respiratory rate of 12 breaths/min. Which ABG interpretation best describes this client's acid-base status?

  1. Respiratory acidosis with full metabolic compensation
  2. Mixed respiratory and metabolic acidosis
  3. Respiratory acidosis with partial metabolic compensation
  4. Metabolic acidosis with partial respiratory compensation
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