What should be done after shaking a pre-filled syringe for vaccination?

After shaking a pre-filled syringe to ensure the medication is properly mixed, the next step is to attach the appropriate needle. This step is crucial because the needle used must be suitable for the type of vaccine being administered, ensuring effective delivery of the vaccine into the patient.

Shaking the syringe typically serves to ensure uniform distribution of the vaccine components, especially if it is a suspension that requires mixing. After shaking, it is essential to prepare the syringe for use, which involves selecting and attaching a needle that is compatible with both the syringe and the administration route (intramuscular, subcutaneous, etc.).

Completing this step properly is vital to maintain the sterility of the syringe and needle while ensuring that the vaccine can be administered safely and effectively. It sets the stage for the next part of the vaccination process, which would involve administering the vaccine to the patient.