What Do You Think? Answers!

Are these statements true or false? 

Use a new vial of 0.9% normal saline (preservative-free) every time to mix with a vial of COVID-19 vaccine (Pfizer).    

  • Answer: True. The diluent does not contain any preservative to inhibit microbial growth. Use a new vial of diluent every time and discard the vial of diluent after use – even if the vial still contains diluent.

Mix 1.8 mL of diluent with vaccine and shake to mix the diluent and vaccine. 

  • Answer: False. Gently invert the vial 10 times to mix the vaccine. The vaccine should NOT be shaken. Vials that are inadvertently shaken should be discarded.




Page last reviewed: August 26, 2021