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Flashcards in Anion Gap Deck (5)
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1

How is anion gap calculated?

(sodium + potassium) - (bicarbonate + chloride)

2

What are the normal values for the anion gap?

8-14 mmol/L

3

When is anion gap useful?

Metabolic acidosis

4

What can cause a normal anion gap metabolic acidosis?

GI bicarbonate loss
Renal tubular acidosis
Drugs
Ammonium chloride injection
Addison's disease

5

What can cause a raised anion gap metabolic acidosis?

Lactate (shock, hypoxia)
Ketones (DKA, alcohol)
Urate (renal failure)
Acid poisoning (salicylates, methanol)
5-oxoproline (chronic paracetamol use)