A nurse is taking a medication history on a client with multiple sclerosis before administering an initial dose of baclofen (Lioresal). What should the nurse check before administering the drug?...

A nurse is taking a medication history on a client with multiple sclerosis before administering an initial dose of baclofen (Lioresal). What should the nurse check before administering the drug? Select all that apply.

1. Presence of muscle weakness.

2. History of muscle spasms.

3. Serum creatinine level.

4. Serum potassium level.

 5. Blood glucose.