HESI Compass exit proctored exam
Calculation
A client with multiple sclerosis (MS) is receiving interferon beta-1b 0.1875 mg SUBQ every other day. The nurse reconstitutes the vial by slowly injecting 1.2 mL of diluent into the interferon vial for a reconstituted solution of 0.25 mg/mL. How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest hundredth.)
mL
Explanation & Rationale
Calculation Steps: Step 1: Determine the concentration of the reconstituted solution: 0.25 mg/mL. Result = 0.25 mg/mL. Step 2: Calculate the volume needed for the prescribed dose: 0.1875 mg ÷ 0.25 mg/mL = 0.75 mL. Result = 0.75 mL.
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