Dopamine IV Drip Calculation Practice Review

2. Dopamine HCI injection is available in 5-mL vials at a concentration of 20% w/v. The injection must be diluted before administration by intravenous infusion. If a pharmacist dilutes the injection by adding the contents of one vial to 250 mL of D5W, calculate the percent concentration (%w/v) of dopamine HCI in the infusion. (Answer must be numeric; no units or commas; round the final answer to the nearest TENTH.)