A nurse is preparing to administer sumatriptan 6 mg subcutaneous to a client. Available is sumatriptan injection 6 mg/0.5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Identify the given information: Dose of sumatriptan: 6 mg Concentration of sumatriptan injection: 6 mg/0.5 mL Calculate the volume of sumatriptan injection to be administered: Volume = Dose (mg) / Concentration (mg/mL) Substitute the values: Volume = 6 mg / (6 mg/0.5 mL) Volume = 0.5 mL