Anion Gap, Serum/Plasma

Sunquest Code:AGAP  
Epic Code:LAB4252Epic Name:Anion Gap

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel) (Green (lithium heparin) on ICE, Red (no gel), Red or gold (gel))

Processing and Shipping

Test Performed at or Referral Lab Chemistry  (UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center)


Reference Range:3-14 mmol/L; anion gap = Na - (Cl + CO2)
Use:Diagnosis of metabolic acidosis (marked elevation). Above 30 mmol/L, gap increase is commonly secondary to lactic acidosis or ketoacidosis. Unmeasured cations include K, Ca, Mg; unmeasured anions include protein, PO4, SO4, organic acids.

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