Final answer:
Effective treatment in a patient with increased intracranial pressure who underwent a tracheostomy can be indicated by a PaO2 of 90 mm Hg and a PaCO2 of 40 mm Hg.
Step-by-step explanation:
The outcomes that indicate effective treatment in a patient with increased intracranial pressure who underwent a tracheostomy to help maintain adequate ventilation are:
- PaO2 of the patient is 90 mm Hg - This indicates that the patient has a good level of oxygenation in their arterial blood.
- PaCO2 of the patient is 40 mm Hg - This indicates that the patient has a normal level of carbon dioxide in their arterial blood.
The other options do not specifically indicate effective treatment for increased intracranial pressure.