Acid Base Flashcards
1
Q
Mechanisms in H regulation
A
Chemical Buffering
Alveolar ventilation
H excretion
2
Q
Donate H ions
A
Acid
3
Q
Receive/accept H ions
A
Base
4
Q
Completely ionized acid
Ka
A
strong acid
high Ka
5
Q
principal buffers in the body
A
weak acid
6
Q
Henderson Hasselbach equation
A
pH = pKa + log (base/acid)
7
Q
prevent large changes in H concentration
A
Buffers
8
Q
Buffer is most efficient whrn pH of the solution is within ___ unit of its pKa
A
+-1.0 pH
9
Q
principal extracellular buffer
A
Hco3/Co2
10
Q
Intracellular and Bone buffers
A
proteins, PO4-, hgb
11
Q
Immediate response to acid and base loads
A
chemical buffering
12
Q
Respiratory acidosis compensation
A
For every 10 mmHg increase in Pco2, inc in plasma Hco3 1-3.5 mmol/L
13
Q
Most effective defense of respiratory acidosis
A
inc in bicarbonate concentration
enhanced renal H excretion
