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 off the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Determine the desired dosage: The nurse needs to administer 6 mg of sumatriptan. Determine the volume per dose: The sumatriptan injection contains 6 mg per 0.5 mL. The nurse needs to administer 6 mg per dose. To find the volume per dose, we can set up a proportion: 6 mg / 0.5 mL = 6 mg / x mL Cross-multiplying gives us: 6x = 3 Dividing both sides by 6, we get: x = 0.5 mL