Why Is 70% Ethanol Used to Sterilize Skin Before Injections

question 75

Multiple Choice

Why is 70% ethanol used to sterilize skin before injections instead of 95% ethanol?

• A) 70% ethanol kills bacteria by denaturing their surface proteins.
• B) 70% ethanol penetrates bacteria and kills them by coagulating their proteins.
• C) 70% ethanol can kill bacteria without damaging their structures.
• D) None of these are correct.

Recognize the role of control groups in clinical research.

Evaluate the effectiveness of interventions in controlled settings.

Comprehend the purpose and implications of statistical testing in research.

Understand bias in research and ways to mitigate it.

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Definitions:

Laser Printer Part

Components used in a laser printer, which prints images by transferring toner to paper using laser technology.

Corona Wire

The corona wire is a component in laser printers and photocopiers used to generate a static electric charge to attract toner particles onto the paper.

Fuser

A component in laser printers and copiers that uses heat and pressure to bond toner to paper, producing a printed image or text.

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Center for Internet Security, an organization that provides best practices and security benchmarks to help protect organizations against cyber threats.