a. The difference in volume between the intended final volume of 258.75 ml and the actual final volume of 250 ml could potentially affect the patient if it results in a different concentration of the benzocaine solution being administered. For example, if the final concentration of the solution is less than 4% due to the reduction in volume, it may not provide the intended level of pain relief for the patient. On the other hand, if the final concentration is higher than 4% due to the reduction in volume, it may increase the risk of adverse reactions or toxicities for the patient.
b. It is not appropriate for the technician to intentionally pour an even volume of the diluted solution if it results in a deviation from the intended final concentration. The concentration of the medication should be carefully controlled to ensure that the patient receives the correct dosage and to minimize the risk of adverse reactions or toxicities. It is important for the technician to follow proper protocols and procedures for diluting medications, including accurately measuring and recording the final volume of the solution.