Why? It's the same liquid. It's like getting the last drop of gas when filling up your car, but there's wastage because some liquid remains in the syringes, and

Why? It's the same liquid. It's like getting the last drop of gas when filling up your car, but there's wastage because some liquid remains in the syringes, and the amount depends on the type of syringe: https://arc-w.nihr.ac.uk/research/projects/low-versus-high-dead-space-syringes-user-preferences-and-attitudes/ https://arc-w.nihr.ac.uk/research/projects/low-versus-high-d...