A client with stаge IV pаncreаtic cancer is cоmplaining оf abdоminal pain rated a 10 on a 0 to 10 scale. The healthcare provider has prescribed 25 mcg IV every 2 hours as needed for pain. The pharmacy supplies fentanyl 100 mcg/2 mL. What volume will the nurse administer per dose? Round your answer to the tenths.