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.

---

Definitions:

Bystander Effect

A phenomenon in social psychology where people are less inclined to assist a victim if there are others around.

Pluralistic Compliance

The phenomenon where individuals conform to the perceived behavior or beliefs of a group, even if they might personally disagree, due to the assumption that the group's consensus represents the correct course of action.

Fear

An emotional response to a perceived threat, characterized by increased alertness, anxiety, and a survival-oriented behavior.

Message

Any verbal, written, or signaled communication sent from one individual or group to another.