Which antiseptic is commonly used for blood culture collection?

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Multiple Choice

Which antiseptic is commonly used for blood culture collection?

Preventing contamination during blood culture collection starts with thorough antisepsis of the venipuncture site. Two antiseptics are commonly used: chlorhexidine gluconate 2% in alcohol and povidone-iodine 10%. Chlorhexidine in alcohol works quickly and leaves persistent antimicrobial activity, which helps reduce skin flora that could contaminate the culture. Povidone-iodine is an effective alternative when chlorhexidine isn’t suitable or available. The other options aren’t standard for this purpose: 70% isopropyl alcohol alone lacks lasting antimicrobial effects, ethanol alone isn’t the preferred antiseptic for this collection, and hydrogen peroxide isn’t recommended due to inconsistent performance and potential tissue irritation.

Preventing contamination during blood culture collection starts with thorough antisepsis of the venipuncture site. Two antiseptics are commonly used: chlorhexidine gluconate 2% in alcohol and povidone-iodine 10%. Chlorhexidine in alcohol works quickly and leaves persistent antimicrobial activity, which helps reduce skin flora that could contaminate the culture. Povidone-iodine is an effective alternative when chlorhexidine isn’t suitable or available. The other options aren’t standard for this purpose: 70% isopropyl alcohol alone lacks lasting antimicrobial effects, ethanol alone isn’t the preferred antiseptic for this collection, and hydrogen peroxide isn’t recommended due to inconsistent performance and potential tissue irritation.

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