ABGs Flashcards
1
Q
Give an example of a buffer system in the body
A
bicarbonate buffer system. phosphates, proteins (albumin)
2
Q
What is the role of carbonic anhydrase?
A
Conversion of H2CO3 into CO2 + H2O
3
Q
What is base excess?
A
The amount of acid or base required to return 1L of blood to normal mean bicarbonate of 22.9 mEq/L
4
Q
What is a weak acid?
A
An acid that only partially dissociates in aq soln into protons and a conjugate base
5
Q
What is the Henderson-Hasselbach equation used for?
A
To calculate blood pH
6
Q
What are the two urinary buffers?
A
Ammonia and phosphate buffers
7
Q
What is the compensatory respiratory sign in metabolic acidosis (e.g. in ketoacidosis)?
A
Kaussmaul breathing
