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CLINICALPATHOLOGY-233
The ANION GAP is a calculated value used in diagnosing metabolic acidosis. What is the formula and normal range?
A. Anion gap = Na + Cl − HCO₃; normal 20–30 mEq/L
B. ANION GAP = Na⁺ − (Cl⁻ + HCO₃⁻); NORMAL: 8–16 mEq/L (some use 10–18 mEq/L)
C. Anion gap = Na + K − Cl; normal 40–50 mEq/L
D. Anion gap = HCO₃ − Cl × Na
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