A nurse is preparing to administer methotrexate 7.5 mg subcutaneous for a client who has rheumatoid arthritis. Available is methotrexate 15mg/0.4 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not trailing zero

Determine the total daily dosage: The client is prescribed 7.5 mg of methotrexate. Calculate the dosage per dose: The medication is to be administered in a single dose. Dosage per dose is 7.5 mg. Determine the volume per dose: The methotrexate injection contains 15 mg per 0.4 mL. The nurse needs to administer 7.5 mg per dose. To find the volume per dose, we can set up a proportion: 15 mg / 0.4 mL = 7.5 mg / x mL Cross-multiplying gives us: 15x = 3 Dividing both sides by 15, we get: x = 0.2 mL