Arterial Blood Gas (ABG) Interpreter
ABG Interpretation
Interpret arterial blood gas values to determine acid-base status
Formula
Anion Gap = Na - Cl - HCO3 | Winters Formula: Expected PaCO2 = 1.5 x HCO3 + 8
Frequently Asked Questions
What are normal ABG values?
Normal ranges: pH 7.35-7.45, PaCO2 35-45 mmHg, HCO3 22-26 mEq/L, PaO2 80-100 mmHg.
How do I interpret ABG results step by step?
Step 1: Check pH. Step 2: Check PaCO2 (respiratory). Step 3: Check HCO3 (metabolic). Step 4: Determine compensation. Step 5: Check PaO2 oxygenation.
What is Winters formula?
Winters formula predicts expected PaCO2 in metabolic acidosis: Expected PaCO2 = (1.5 x HCO3) + 8, plus or minus 2.
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