Where should the needle be inserted when drawing vaccine from a vial?

Where should the needle be inserted when drawing vaccine from a vial?

• A. Center of the rubber diaphragm
• B. Diaphragm edge
• C. Cap of the vial
• D. Top of the vial

Answer: (A)

Pierce the center of the rubber stopper. Inserting through the center helps prevent coring and tearing of the stopper and minimizes the chance of rubber fragments contaminating the vaccine. The edge of the stopper is more prone to tearing and can produce particles that enter the vial, and the cap or top of the vial is not the access point for drawing vaccine. After cleansing the stopper, insert the needle straight into the center to maintain sterility and integrity of the vial.

Pierce the center of the rubber stopper. Inserting through the center helps prevent coring and tearing of the stopper and minimizes the chance of rubber fragments contaminating the vaccine. The edge of the stopper is more prone to tearing and can produce particles that enter the vial, and the cap or top of the vial is not the access point for drawing vaccine. After cleansing the stopper, insert the needle straight into the center to maintain sterility and integrity of the vial.