IGNOU PB Bsc Entrance-2022
Applied Microbiology & Infection control
Easy

Simplest method of preventing cross infection is:

Appeared in: IGNOU PB Bsc Entrance-2022

Explanation

  • Handwashing is the most effective and simplest basic technique for preventing and controlling the transmission of infection.
  • It works by mechanically removing and diluting microorganisms from the hands, which is the most common route for spreading infection in healthcare.
  • Compared to other methods, it is low-cost, easily accessible, and can be performed by anyone, making it the simplest and most fundamental preventative measure.

Why Other Options Were Wrong

  • Option A: Disinfection is a process that uses chemicals to destroy most microbes on inanimate surfaces. It is more complex than handwashing, requiring specific agents, contact times, and protocols.
  • Option B: Sterilization is a complex process that eliminates all microbial life, including spores. It requires specialized equipment like autoclaves and is not a simple, routine procedure.
  • Option D: Fumigation is a large-scale, hazardous procedure that uses gaseous chemicals to disinfect an entire room or building. It is highly complex, requires evacuation, and is not a simple or routine method.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: Knowing Infection Control and Prevention of Cross-Infection helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
  • Adherence to hand hygiene protocols is the cornerstone of preventing healthcare-associated infections (HAIs), which are a major cause of patient morbidity and mortality.
  • Nurses have a critical role in practicing, teaching, and monitoring hand hygiene compliance among staff, patients, and visitors to create a culture of safety.
  • What if? If a patient has a known C. difficile infection, an alcohol-based hand rub is not sufficient. The nurse must wash their hands with soap and water because alcohol does not effectively kill C. difficile spores.
How to Approach the Question
  • First, identify the key term in the question: 'simplest'. This directs you to look for the most basic, fundamental, and least complex option.
  • Next, evaluate each option based on its complexity and application. Ask yourself: 'How easy is this to do? What resources does it require?'
  • Consider Handwashing: It requires only soap and water or an alcohol rub and is a quick, personal action.
  • Consider Disinfection, Sterilization, and Fumigation: These are all more complex procedures involving chemicals, specialized equipment, or large-scale environmental control.
  • Compare the options. Handwashing is clearly the most straightforward and universally applicable method for an individual to prevent transmitting germs.
  • Therefore, conclude that handwashing is the 'simplest' method for preventing cross-infection.
Concept Tested & Keywords
  • Concept Tested: Infection Control and Prevention of Cross-Infection
  • Stem keywords: Simplest method, preventing cross infection
  • Lead-in keywords: Simplest
  • Negative lead-in flag: false

Question ID

QTi4oYsj3YpRokSq1aaIcV

Reference Book

E6 Pharmacology Katzung 16e p. 1395-1397

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 26-28

E6 Nursing Fundamentals Potter Perry 12e Part 2 p. 234-236

Practise the full IGNOU PB Bsc Entrance-2022

Attempt every question from this paper in a timed mock, then review the full solution for each one.