A nurse is preparing to administer haloperidol 0.5 mg by mouth to an older adult client. The amount available is haloperidol oral concentrate 2mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Identify the desired dose: The doctor has ordered 0.5 mg of haloperidol. Identify the available medication concentration: The available haloperidol oral concentrate is 2 mg/mL. Set up the calculation: We need to find out how many mL are needed to administer 0.5 mg of the medication. We can use the following formula: (Desired dose) / (Concentration) = Volume to administer Plug in the values and calculate: (0.5 mg) / (2 mg/mL) = 0.25 mL