QuestionSBA
QuestionChoice
This is an example of type 2 respiratory failure, which is caused by alveolar hypoventilation. In type 2 respiratory failure, the lungs are unable to effectively oxygenate the blood and cannot effectively excrete carbon dioxide. This leads to low oxygen, with high carbon dioxide levels.
10006842
b
PaO2 - 6.2 kPa, PaCO2 - 8 kPa
QuestionChoice
This is a normal arterial blood gas result.
10006843
c
PaO2 - 10.9 kPa, PaCO2 - 3.4
QuestionChoice
This patient is experiencing an exacerbation of asthma, which would cause a type 1 respiratory failure. Type 1 respiratory failure is caused by a V/Q mismatch in the lungs, where the volume of air entering and exiting the lungs is comparatively smaller than the volume of blood perfusing the lungs. This typically results in low oxygen, with normal/low carbon dioxide levels.
10006841
a
PaO2 - 6.2 kPa, PaCO2 - 4.8 kPa
QuestionChoice
This is a normal arterial blood gas result, with oxygen and carbon dioxide levels both at the extremes of the normal ranges.
10006845
e
PaO2 - 8.0 kPa, PaCO2 - 5.9 kPa
QuestionChoice
These results show a normal PaO2, with a raised PaCO2. This may be present in patients with long-term COPD where, due to hypoventilation, the body produces more CO2 than it can eliminate, resulting in a net retention of CO2. In type 1 respiratory failure, the PaO2 would be expected to be low, with low or normal PaCO2.
10006844
d
PaO2 - 8.0 kPa, PaCO2 - 7.5 kPa
QuestionComment
Going by Quesmed on ranges provided that is not true
23219
User
subscriber
Anterior Gland
QuestionComment
contradicting your own reference ranges
30561
User
subscriber
Racoon Eyes
Concept
Chapter
2693
4546
Respiratory failure
Topic
132
Respiratory
13915
A 24-year-old woman presents to A&E with severe shortness of breath. She has a past medical history of asthma and has taken 20 puffs of her salbutamol inhaler today, which has not relieved her symptoms. On examination, there is an audible wheeze. Her observations show HR 122, RR 24, BP 142/74, O2 90%. An arterial blood gas is performed, and she is found to be in type 1 respiratory failure.

Which of the following arterial blood gas results would you most expect to see in this patient?
a