Arterial Blood Gas Flashcards
0
Q
Characteristics of metabolic alkalosis
A
High pH
Normal pCO2
High HCO3
1
Q
What are the correct normal values for: pH PaO2 PaCO2 HCO3 Base excess Lactate
A
pH = 7.35-7.45 PaO2 = 12-16 kPa PaCO2 = 4.5-6.0 kPa HCO3 = 22-28 mmol/l Bass excess = -2 - +2 Lactate = 0.7-1.9 mmol/l
2
Q
Causes of metabolic alkalosis
A
Vomiting, diuretics, antacids
3
Q
Characteristics of metabolic acidosis
A
Low pH
Normal/low pCO2
Low HCO3
4
Q
Causes of metabolic acidosis
A
Diabetes, renal failure, starvation, diarrhoea
5
Q
Characteristics of respiratory alkalosis
A
High pH
Low pCO2
Normal HCO3
6
Q
Causes of respiratory alkalosis
A
Hyperventilation, anxiety, aspirin OD
7
Q
Characteristics of respiratory acidosis
A
Low pH
High pCO2
Normal/high HCO3
8
Q
Causes of respiratory acidosis
A
ARDS, chronic airway limitation, head injury, cardiac arrest
