MRCP UK EXAMINATIONS

NEUROLOGY

SURGERY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The nurse is caring for a patient with status asthmaticus in the intensive care unit (ICU).Which blood gas analysis related to hyperventilation does the nurse observe with this patient?
A
Metabolic acidosis
B
Metabolic alkalosis
C
Respiratory acidosis
D
Respiratory alkalosis
Explanation: 

Detailed explanation-1: -The PaCO2 is elevated, indicating respiratory acidosis, and the HCO3 is elevated, indicating a metabolic alkalosis.

Detailed explanation-2: -Respiratory alkalosis is a pathology that is secondary to hyperventilation. Hyperventilation typically occurs in response to an insult such as hypoxia, metabolic acidosis, pain, anxiety, or increased metabolic demand.

Detailed explanation-3: -Acute asthmatic crisis is usually accompanied by hyperventilation and hypocapnia with respiratory alkalosis [3, 5].

Detailed explanation-4: -13. Which blood gas result will the nurse expect to observe in a patient with respiratory alkalosis? Respiratory alkalosis should show an alkalotic pH and decreased CO2 (respiratory) values, with a normal HCO3-.

There is 1 question to complete.