What is the best way to prevent hospital-acquired infection?

RML 2023

Applied Microbiology & Infection control

Easy

Appeared in: RML 2023

Explanation

Frequent hand washing is universally recognized as the single most important, effective, and cost-effective measure to prevent the transmission of pathogens in healthcare settings.
The primary route for spreading hospital-acquired infections (HAIs) is through the contaminated hands of healthcare workers.
Hand hygiene breaks the chain of infection at the most critical point: transmission via direct contact.
This practice is a cornerstone of Standard Precautions, which are applied to the care of all patients in any healthcare setting.

Option A: Routine use of prophylactic antibiotics is not recommended as it promotes the development of multidrug-resistant organisms (MDROs) and does not prevent all types of HAIs.
Option B: Measuring the total leucocyte count (TLC) is a diagnostic or monitoring action, not a preventive one. It helps to identify if an infection is already present but does not stop it from occurring.
Option D: UV sterilization is an environmental disinfection method. While useful for cleaning rooms after a patient is discharged, it does not address the primary route of transmission: the hands of healthcare workers during patient care.

Clinical Relevance

Nursing practice connection: Knowing Prevention of Hospital-Acquired Infections (HAIs) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Adherence to hand hygiene protocols is a direct measure of the quality and safety of patient care. It is a core professional responsibility for all nurses.
Failure to perform hand hygiene can lead to outbreaks, increased patient morbidity and mortality, longer hospital stays, and higher healthcare costs.
In the Indian context, where overcrowding in hospitals can be common, strict hand hygiene is even more critical to prevent the rapid spread of infections.

How to Approach the Question

First, identify the core of the question: it asks for the 'best' way to prevent hospital-acquired infections. This implies you need to compare the effectiveness of different strategies.
Analyze each option's role in infection control. Is it preventive, diagnostic, or therapeutic? Is it a primary or secondary measure?
Recall the chain of infection (infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host). The most effective intervention is one that breaks this chain at its weakest or most common link.
Evaluate the mode of transmission for most HAIs. The most common route is contact transmission via the hands of healthcare workers.
Select the option that directly and most effectively interrupts this primary mode of transmission. Hand washing is the only option that does this directly and universally.
Eliminate other options by categorizing them: Prophylactic antibiotics are a limited-use chemical intervention with risks (resistance). TLC count is diagnostic, not preventive. UV rays are an environmental, adjunctive measure, not a primary one for contact transmission.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) pp. 27-29, 26-28