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ABG interpretation uses pH, PaCO2, and HCO3 to diagnose acid-base disturbances. It's essential for critical care management.

단계별 가이드

  1. 1Check pH: <7.35 acidemia, >7.45 alkalemia
  2. 2Identify primary problem from PaCO2 and HCO3
  3. 3Assess appropriate respiratory compensation for metabolic disorders

풀어진 예시

입력
pH 7.25, PaCO2 55, HCO3 24
결과
Primary respiratory acidosis with metabolic compensation inadequate
Requires ventilatory support

피해야 할 일반적인 실수

  • Assuming PaCO2 direction matches pH (opposite for respiratory)
  • Neglecting appropriate compensation rules

자주 묻는 질문

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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