Which statement is the scientific rationale for prescribing dexamethasone (Decadron), a glucocorticoid, to a client diagnosed with a primary brain tumor? 1. Decadron will prevent metastasis to other...

Which statement is the scientific rationale for prescribing dexamethasone (Decadron), a glucocorticoid, to a client diagnosed with a primary brain tumor?

1. Decadron will prevent metastasis to other parts of the body.

2. Decadron is a potent anticonvulsant and will prevent seizures.

3. Decadron increases the uptake of serotonin in the brain tissues.

4. Decadron decreases intracranial pressure by decreasing inflammation