The nurse manager is evaluating current infection control data for the intensive care unit. The nurse compares past patient data with current data to look for trends. The nurse manager examines the infection chain for possible solutions. In which order will the nurse arrange the items for the infection chain beginning with the first step?

Correct Answer: B

Rationale: The correct order for the infection chain starts with the infectious agent or pathogen (B). This is the initial element that causes infection. Next is the reservoir or source for pathogen growth (D), where the pathogen resides and multiplies. Then comes the mode of transmission (A), which refers to how the pathogen is spread. Finally, the susceptible host (C) is the last in the chain, as they are the individual who can be infected. Understanding this sequence is crucial for effective infection control. The other choices are incorrect because they do not follow the logical progression of how infections occur in the chain.

Correct Answer: A

Rationale: Alcohol-based hand rubs are preferred when hands are not visibly soiled due to efficacy and convenience.

Correct Answer: C

Rationale: Gas gangrene is caused by Clostridium bacteria, which are commonly found in soil.

Correct Answer: C

Rationale: Hand hygiene is the most effective way to prevent the spread of pathogens in healthcare settings.

Correct Answer: B

Rationale: Written infection-prevention practices promote consistent hygiene and reduce infection spread.