Respiratory Alkalosis
Overview
Primary Abnormality
- Alkalaemia with decreased PaCO₂.
Secondary Response
- Acute respiratory alkalosis - 2mmol/L [HCO₃] decrease for every 10mmHg PaCO₂ below 40mmHg
- Chronic respiratory acidosis - 4mmol/L [HCO₃] decrease for every 10mmHg PaCO₂ below 40mmHg
Causes of Respiratory Alkalosis
- Hyperventilation - hypoxia, anxiety, pain, intracranial pathology, pregnancy
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