Anion Gap Flashcards
1
Q
How is anion gap calculated?
A
(sodium + potassium) - (bicarbonate + chloride)
2
Q
What are the normal values for the anion gap?
A
8-14 mmol/L
3
Q
When is anion gap useful?
A
Metabolic acidosis
4
Q
What can cause a normal anion gap metabolic acidosis?
A
GI bicarbonate loss Renal tubular acidosis Drugs Ammonium chloride injection Addison's disease
5
Q
What can cause a raised anion gap metabolic acidosis?
A
Lactate (shock, hypoxia) Ketones (DKA, alcohol) Urate (renal failure) Acid poisoning (salicylates, methanol) 5-oxoproline (chronic paracetamol use)