Which of the following is correct sequence of hand washing?

NORCET -4 , 2023

Applied Microbiology & Infection control

Easy

Appeared in: NORCET -4 , 2023

Explanation

This option outlines the universally accepted procedure for effective hand washing, ensuring both safety and efficacy.
Wetting hands first prevents skin irritation from concentrated soap and facilitates proper lathering.
Applying soap and scrubbing for at least 20 seconds provides the necessary chemical action and mechanical friction to remove transient flora and dirt.
Rinsing removes the emulsified dirt and microorganisms from the skin surface.
Drying with a single-use tissue paper is the final step, which also allows for turning off the faucet without recontaminating the hands, a critical step in infection control.

Option B: Applying soap before wetting the hands is incorrect. It can cause skin irritation and makes it difficult to create an effective lather to clean all surfaces properly.
Option C: While a dryer does dry hands, it is less preferred in clinical settings. Air dryers can aerosolize pathogens present in the restroom environment and blow them onto freshly cleaned hands. Furthermore, a dryer cannot be used to turn off the faucet, increasing the risk of recontamination.
Option D: This sequence is illogical. Scrubbing hands without soap is ineffective because soap is the agent required to lift and emulsify dirt and microorganisms, allowing them to be washed away. This order would merely move pathogens around on the skin.

Visual 1: Infographic - A step-by-step visual guide illustrating the correct hand washing technique, with icons for each stage: wetting, applying soap, scrubbing (showing all hand surfaces), rinsing, and drying with a paper towel to turn off the tap. This reinforces the correct sequence visually.
Visual 2: Diagram - A diagram based on WHO guidelines showing the 6 steps of hand rubbing/scrubbing to ensure all surfaces are covered, including palm to palm, back of hands, interlaced fingers, back of fingers, thumbs, and fingertips.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain The question tests the knowledge of the standard and correct procedural steps for performing hand hygiene with soap and water in a clinical setting as background academic context rather than a clinical decision trigger.
Hand hygiene is the single most important, basic, and effective measure to prevent the spread of Healthcare-Associated Infections (HAIs). Adherence to the correct procedure protects both patients and healthcare workers.
Failure to perform hand hygiene correctly can lead to the transmission of dangerous pathogens like Methicillin-resistant Staphylococcus aureus (MRSA) and Clostridioides difficile.
What if? If a nurse is caring for a patient with a known C. difficile infection, hand washing with soap and water is mandatory. Alcohol-based hand rubs are not effective against C. difficile spores, so the correct washing sequence becomes even more critical to prevent transmission.

How to Approach the Question

First, identify the core task: 'correct sequence of hand washing'. This is a procedural knowledge question.
Recall the fundamental principles of cleaning: you need a solvent (water) and a cleaning agent (soap) before mechanical action (scrubbing) can be effective.
Evaluate each option against this logical flow. Option B (soap first) and Option D (scrub first) are immediately illogical.
Compare the remaining options, A and C. The only difference is the drying method (tissue paper vs. dryer).
Consider the clinical context. In healthcare, preventing recontamination is paramount. A paper towel allows you to turn off the faucet without touching it. An air dryer does not offer this benefit and can spread germs. Therefore, the option with the tissue paper is superior and the most correct answer in a healthcare context.

Concept Tested & Keywords

Concept Tested: The question tests the knowledge of the standard and correct procedural steps for performing hand hygiene with soap and water in a clinical setting.
Stem keywords: correct sequence, hand washing
Lead-in keywords: Which of the following is correct
Negative lead-in flag: false

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