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ABG interpretation uses pH, PaCO2, and HCO3 to diagnose acid-base disturbances. It's essential for critical care management.
Stapsgewijze handleiding
- 1Check pH: <7.35 acidemia, >7.45 alkalemia
- 2Identify primary problem from PaCO2 and HCO3
- 3Assess appropriate respiratory compensation for metabolic disorders
Uitgewerkte voorbeelden
Invoer
pH 7.25, PaCO2 55, HCO3 24
Resultaat
Primary respiratory acidosis with metabolic compensation inadequate
Requires ventilatory support
Veelgemaakte fouten om te vermijden
- ✕Assuming PaCO2 direction matches pH (opposite for respiratory)
- ✕Neglecting appropriate compensation rules
Veelgestelde vragen
What's the A-a gradient used for?
Assessing lung oxygenation function; elevated gap indicates intrinsic lung disease.
How do you know if compensation is appropriate?
Use Winter's formula for metabolic acidosis or expected PaCO2 formulas for metabolic alkalosis.
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