A client newly diagnosed with diabetes mellitus suddenly becomes confused and weak. Which intervention(s) should the nurse implement? Select all that apply.

Administer a PRN dose of regular insulin.

Give the client 4 ounces (120 mL) of orange juice.

Provide the client with 1/2 cup (120 mL) diet carbonated soda.

Obtain blood pressure and heart rate.

Check the client's current fingerstick blood glucose.