How should the vaccine be drawn up from a single/multidose vial?

To draw a vaccine from a single or multidose vial, inverting the vial and using the needle tip to draw up the dose is the correct method. This technique ensures that the vaccine is safely and efficiently extracted while minimizing the risk of bubbles forming in the syringe.

When the vial is inverted, gravity helps the liquid flow into the syringe, allowing for easier aspiration of the desired volume. It also promotes an even distribution of the vaccine, especially if it is a suspension that may settle. Ensuring that the needle tip is submerged in the liquid prevents drawing in air and allows for an accurate volume to be measured.

This method is essential for maintaining the integrity of the vaccine, ensuring that the correct dosage is given and that the vaccine is not contaminated during the drawing process.