A patient on oxygen 15L/min via reservoir facemask has the following arterial blood gas result: pH 6.9, PaCO2 7.2 kPa (54 mmHg), PaO2 10 kPa (75 mmHg), HCO3- 10 mmol/L. His acid-ba... A patient on oxygen 15L/min via reservoir facemask has the following arterial blood gas result: pH 6.9, PaCO2 7.2 kPa (54 mmHg), PaO2 10 kPa (75 mmHg), HCO3- 10 mmol/L. His acid-base abnormality is typical of:
Understand the Problem
The question is asking about the interpretation of a patient's arterial blood gas results to determine the type of acid-base abnormality present. It provides specific values for pH, PaCO2, PaO2, and HCO3-, which are needed to analyze the acid-base status and identify the typical condition associated with such results.
Answer
The combination of respiratory acidosis and metabolic acidosis.
The combination of respiratory acidosis and metabolic acidosis.
Answer for screen readers
The combination of respiratory acidosis and metabolic acidosis.
More Information
The pH of 6.9 indicates severe acidosis. The elevated PaCO2 of 7.2 kPa (54 mmHg) suggests respiratory acidosis, while the low HCO3- of 10 mmol/L indicates metabolic acidosis. The combination of these factors is typical for conditions leading to mixed acidosis.
Tips
It is common to misinterpret the primary versus compensatory mechanisms in acid-base imbalances. Look for both respiratory and metabolic components when both PaCO2 and HCO3- are abnormal.
Sources
AI-generated content may contain errors. Please verify critical information
