QuestionSBA
QuestionChoice
Correct-  The elevated serum pH indicates alkalosis. This elevated pH is caused by a decreased concentration of CO2 in the bloodstream. It is uncompensated as her bicarbonate levels are still within normal range. Hyperventilation is a common cause of respiratory alkalosis.
10008305
a
Uncompensated respiratory alkalosis
QuestionChoice
Incorrect - This is not an acidosis as the pH is elevated. The elevated pH is caused by a decreased concentration of CO2 in the blood stream. It is uncompensated as her bicarbonate levels are still within normal range.
10008309
e
Compensated respiratory acidosis
QuestionChoice
Incorrect -  The bicarbonate levels are within normal range which indicates this is not a metabolic alkalosis. Instead, it is the decreased CO2 concentration driving the alkalosis.
10008308
d
Uncompensated metabolic alkalosis
QuestionChoice
Incorrect - The woman's pH is elevated, which is consistent with alkalosis. This elevated pH is caused by a decreased concentration of CO2 in the blood stream. It is not a compensated alkalosis as her bicarbonate levels are still within normal range.
10008306
b
Compensated respiratory alkalosis
QuestionChoice
Incorrect - The bicarbonate levels are within normal range which indicates this is not a metabolic alkalosis. Instead, it is the decreased CO2 concentration driving the alkalosis.
10008307
c
Compensated metabolic alkalosis
Concept
Chapter
2693
4662
Acid-Base Balance
Topic
150
Respiratory physiology
14208
A 29-year-old woman with asthma presents to the Emergency Department in extreme respiratory distress. An arterial blood gas is taken:


||||
|--------------|:-------:|------------------|
|pH|7.54|7.35 - 7.45|
|PaO₂|6.8 kPa|11 - 15|
|PaCO₂|3.8 kPa|4.6 - 6.4|
|Bicarbonate|27 mmol/L|22 - 30|


 - FiO2 0.21



Which of the following acid-base disturbances does this patient have?
a