What indicates a vaccine drop on the bifurcated needle before skin deposition?

What indicates a vaccine drop on the bifurcated needle before skin deposition?

• A. A dry prong
• B. A colored indicator on the vial
• C. A small drop between the prongs
• D. A film on the outside of the needle

Answer: (C)

Loading a bifurcated needle for intradermal vaccination is confirmed by a tiny amount of vaccine sitting between the two prongs. That small drop visible between the tines shows the needle is loaded and ready to deposit vaccine into the skin. If the prongs are dry, there’s no vaccine on the needle. Indicators on the vial or a film on the outside don’t reliably show loading, and a film on the outside isn’t a valid sign of vaccine presence.

Loading a bifurcated needle for intradermal vaccination is confirmed by a tiny amount of vaccine sitting between the two prongs. That small drop visible between the tines shows the needle is loaded and ready to deposit vaccine into the skin. If the prongs are dry, there’s no vaccine on the needle. Indicators on the vial or a film on the outside don’t reliably show loading, and a film on the outside isn’t a valid sign of vaccine presence.