Final answer:
To administer the prescribed 250 mg of ampicillin with a concentration of 100 mg per mL, the healthcare professional should give 2.5 mL of the medication.
Step-by-step explanation:
The question pertains to dosage calculation, which is a fundamental skill in nursing and other healthcare professions. The doctor has ordered 250 mg of ampicillin, and the concentration available is 100 mg per mL.
To calculate the amount to administer, we use the formula:
Dose ordered (mg)/Concentration available (mg/mL) = Volume to administer (mL)
So, for this example:
250 mg / 100 mg/mL = 2.5 mL
Therefore, the correct volume of ampicillin to administer is 2.5 mL.