Which of the following is an incorrect method when preparing an injection from an ampule?

When preparing an injection from an ampule, the method of suctioning the medication without injecting air first is incorrect.

The proper technique involves drawing up the medication by first opening the ampule and then creating a vacuum effect inside the ampule as the liquid is drawn into the syringe. This typically requires the introduction of air into the ampule to balance the pressure, making it easier to draw the solution. If air is not introduced, it may create a vacuum that prevents the fluid from being easily accessed, complicating the suction process.

Discarding the first drop of medication is a common practice to ensure that there are no contaminants or air bubbles that may have been introduced during the drawing process. Swiping the neck of the ampule with an alcohol wipe is an essential step to reduce the risk of infection during the preparation. Using a filter needle is critical when drawing from an ampule as it helps trap any glass particles that may be present, ensuring that the injection remains safe for administration.