The healthcare provider prescribes interferon beta-1b 0.0625 mg SUBQ every other day for a client with multiple sclerosis. The nurse reconstitutes the single-use vial of powder labeled, "0.3 mg with 1.2 mL of sterile water." How many mL should the nurse administer to the client? (Enter the numerical value only. If rounding is required, round to the nearest hundredth.)

The vial is labeled as “0.3 mg with 1.2 mL of sterile water.” Therefore, the concentration of the medication is: 0.3 mg / 1.2 mL ​= 0.25 mg/mL The healthcare provider has prescribed a dosage of 0.0625 mg of interferon beta-1b. So, the volume of medication the nurse should administer is: 0.0625 mg ​/ 0.25 mg/mL = 0.25 mL So, the nurse should administer 0.25 mL of interferon beta-1b to the client.