QuestionSBA
QuestionChoice
In type 1 respiratory failure carbon dioxide is normal, and the oxygen is low. The raised carbon dioxide is causing the acidosis, meaning it is a respiratory acidosis, not metabolic.
10006238
c
Type 1 respiratory failure, metabolic acidosis with partial metabolic compensation
QuestionChoice
The metabolic compensation is only partial as the bicarbonate is not sufficiently raised to correct the pH
10006240
e
Type 2 respiratory failure, respiratory acidosis with full metabolic compensation
QuestionChoice
In respiratory alkalosis, the pH would be above 7.45 and the carbon dioxide would be low.
10006239
d
Type 2 respiratory failure, respiratory alkalosis with partial metabolic compensation
QuestionChoice
In type 1 respiratory failure carbon dioxide is normal, and the oxygen is low.
10006237
b
Type 1 respiratory failure, respiratory acidosis with partial metabolic compensation
QuestionChoice
This is type 2 respiratory failure, as the oxygen is low and the carbon dioxide is high. This is respiratory acidosis, as the pH is below 7.35 and the carbon dioxide is raised which has caused the low pH. There is partial metabolic compensation here, as the bicarbonate is raised, however it is not sufficiently raised to correct the pH, so it is only partial.
10006236
a
Type 2 respiratory failure, respiratory acidosis with partial metabolic compensation
Concept
Chapter
2693
4485
Acid-Base Balance and the Arterial Blood Gas
Topic
150
Respiratory physiology
13794
Which of the following best describes the following arterial blood gas?

| Parameter        | Result           | Reference range  |
| ------------- |:-------------:| -----:|
| pH  | 7.28 | 7.35 - 7.45 |
| PaO<sub>2<sub/>     | 7.8      |   11 - 15 |
| PaCO<sub>2<sub/>  | 6.7      |    4.6 - 6.4 |
| HCO3<sup>-<sup/>   | 35.4      |   22 - 30 |
| Base excess | -5      |    -2 - +2 |

pH 7.28

PaO2 7.8

PaCO2 6.7

HCO3- 35.4

BE -5
a