85. Which of the following is an appropriate technique when preparing a site for venipuncture after applying antiseptic?
Answer: B
Allow to air dry.
Allowing the antiseptic to air dry is an appropriate technique when preparing a site for venipuncture. This process ensures that the antiseptic effectively reduces microbial load on the skin and enhances the sterility of the puncture site.
A) Wipe with clean gauze.
Wiping the site with clean gauze after applying antiseptic can potentially reintroduce contaminants to the area, thus negating the effects of the antiseptic. This technique is not recommended as it disrupts the protective barrier formed by the antiseptic.
B) Allow to air dry.
Allowing the antiseptic to air dry is essential as it ensures that the antiseptic has sufficient time to work effectively against pathogens. This technique is widely accepted in medical practice to maintain a sterile environment for venipuncture.
C) Blow on site.
Blowing on the site is inappropriate because it can introduce saliva and other pathogens, contradicting the purpose of applying antiseptic in the first place. This action can significantly increase the risk of infection at the puncture site.
D) Wave hands over site.
Waving hands over the site does not contribute to the sterilization process and can disturb the area unnecessarily. This action does not promote any beneficial effect in the preparation for venipuncture and may inadvertently spread contaminants.
Conclusion
Allowing the antiseptic to air dry is the only technique that promotes effective disinfection of the venipuncture site. Other options, such as wiping, blowing, and waving, can compromise the sterility and increase the risk of infection, making them unsuitable for proper venipuncture preparation. Thus, option B is the clear and definitive choice.