The chain of infection includes which essential components?

A Only the pathogen

B Infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host

C Only antibiotics and vaccines

D Only hand washing

✓ Correct Answer: Option B

Chain of infection: 6 links. Breaking any link prevents transmission. Nursing interventions target each link: hand hygiene (transmission), PPE (portal of entry), isolation (reservoir), immunization (susceptible host).

💡 Why is B) the correct answer?

The correct answer to the question "The chain of infection includes which essential components?" is Option B: Infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

The other options — A) Only the pathogen, C) Only antibiotics and vaccines, D) Only hand washing — are incorrect for this NCLEX-RN Exam Prep question. As explained above: Chain of infection: 6 links. Breaking any link prevents transmission. Nursing interventions target each link: hand hygiene (transmission), PPE (portal of entry), isolation (reservoir), immunization (…

📚 About This NCLEX-RN Exam Prep Practice Question

This 2-level NCLEX-RN Exam Prep question from the Safe & Effective Care Environment topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free NCLEX-RN Exam Prep practice test or use flashcards for spaced repetition review.

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The chain of infection includes which essential components?

✓ Correct Answer: Option B

📚 About This NCLEX-RN Exam Prep Practice Question

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