When you need to use 2.4 ml of dilutant to reconstitute a vial of medication, what size syringe should be used?

When selecting a syringe for reconstituting a vial of medication with 2.4 ml of diluent, the size of the syringe should correspond closely to the volume being measured. A 3 ml syringe is appropriately sized for accurately measuring out 2.4 ml, as it allows for precise dosage without risk of excess space in the barrel, which can make it difficult to accurately draw up the liquid.

Using a larger syringe, such as a 5 ml, 10 ml, or 20 ml, could lead to difficulties in measuring the exact 2.4 ml due to the surplus volume that provides less precision. Smaller syringes are typically more accurate for smaller volumes, and a 3 ml syringe is designed to handle volumes up to its total capacity, ensuring that the measurement remains accurate and manageable.

Hence, the selection of a 3 ml syringe in this scenario supports the need for precision in medication preparation, which is critical in pharmacy practice.