A patient has the following arterial blood gas result: pH 7.34, PaCO2 8.0 (60 mmHg), PaO2 7.5 kPa (56 mmHg), HCO3- 32.1 mmol/L, BE 8. His acid-base abnormality is: a). Metabolic ac... A patient has the following arterial blood gas result: pH 7.34, PaCO2 8.0 (60 mmHg), PaO2 7.5 kPa (56 mmHg), HCO3- 32.1 mmol/L, BE 8. His acid-base abnormality is: a). Metabolic acidosis b). Metabolic alkalosis c). Respiratory acidosis d). Respiratory alkalosis e). Mixed metabolic acidosis and respiratory alkalosis
Understand the Problem
The question is asking to determine the patient's acid-base status based on the provided arterial blood gas results. We will assess the pH, PaCO2, and HCO3- levels to classify the acid-base disturbance.
Answer
Respiratory acidosis.
The final answer is respiratory acidosis.
Answer for screen readers
The final answer is respiratory acidosis.
More Information
The pH of 7.34 indicates acidosis. Elevated PaCO2 at 60 mmHg suggests a respiratory cause of the acidosis. The elevated HCO3- level (32.1 mmol/L) points to compensation by the kidneys.
Tips
Common mistakes include confusing metabolic and respiratory parameters. Remember, in respiratory acidosis, the pH is low (< 7.35) with high PaCO2 (> 45 mmHg).
Sources
- Arterial Blood Gas - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Abnormal laboratory results The interpretation of arterial blood gases - nps.org.au
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