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Flashcards in Anion Gap Deck (10):
1

Define metabolic acidosis?

Low pH - decreased HCO3-

2

What causes Met acidosis

Add acid, stop exc H+, lose HCO3-

3

What can be used to narrow diagnosis of met acidosis?

Anion gap

4

Define anion gap?

difference between conc of routinely measured anions (cl, hco3) and cations (na)

5

What is the formula for anion gap?

na-(cl+HCO3)

6

what is the normal range of anion gap?

8-16

7

what does a raised anion gap mean?

addition of exogenous acid

8

what is the ddx w/ a raised anion gap?

lactic acidosis, ketoacidosis, ethylene glycol/methanol poisoning, salicylate od

9

What does a normal anion gap mean?

loss of hco3 or failure to sec h

10

What is the ddx w/ a normal anion gap?

renal tubule acidosis, severe prolonged diarrhoea, ca inhibs