Final answer:
To administer a 3 mg dose of haloperidol from a 5 mg/mL solution, you would need 0.6 mL of the solution.
Step-by-step explanation:
To calculate the volume of haloperidol required, you can use the following formula: Volume (mL) = Dose (mg) ÷ Concentration (mg/mL). In this case, the dose prescribed is 3 mg and the concentration of the haloperidol solution available is 5 mg/mL. Therefore, the calculation would be:
Volume (mL) = 3 mg ÷ 5 mg/mL = 0.6 mL
So, you would need 0.6 mL of the 5 mg/mL haloperidol solution to achieve the prescribed 3 mg dose.