Section 4.1: Hand Hygiene & Standard Precautions

Section 4.1: Hand Hygiene & Standard Precautions

Introduction to Infection Prevention

Infection prevention and control is one of the most critical responsibilities of a Certified Nursing Assistant (CNA). In long-term care facilities where residents are older or immunocompromised, infections can lead to life-threatening complications. In Iowa, nursing facilities are regulated under Iowa Administrative Code (IAC) 441 Chapter 81 and Chapter 135C, which mandate that facilities maintain active infection control programs. As the direct care professional who spends the most time with residents, the CNA serves as the first line of defense against pathogens.

Hand Hygiene: The Foundation of Safe Care

Hand hygiene is the most effective way to prevent the spread of infections. It includes both washing hands with soap and water and using alcohol-based hand rubs. Although both methods reduce microorganisms, they are used in different clinical situations and involve different techniques.

Clinical Handwashing with Soap and Water

Handwashing uses soap, water, and mechanical friction to wash away microorganisms and spores. A CNA must wash their hands in the following clinical situations:

1. When hands are visibly soiled with blood, body fluids, secretions, or excretions.
2. Before and after contact with a resident who has or is suspected of having a spore-forming pathogen, such as Clostridioides difficile (C. diff) or Norovirus. Note: Alcohol-based hand rubs do not kill bacterial spores, making soap and water mandatory.
3. Before eating, assisting a resident with meals, or handling clean linen and dietary trays.
4. After using the restroom, assisting with toileting, or handling soiled items/bedpans.

Step-by-Step Handwashing Procedure:

• Preparation: Approach the sink without allowing your uniform or hands to touch the sink surface. Remove or push up wristwatches and sleeves.
• Water: Turn on the water and adjust to warm. Avoid hot water, which causes micro-tears that harbor bacteria.
• Wet and Soap: Wet hands and wrists, keeping hands lower than elbows to prevent contaminated water running up forearms. Apply liquid soap.
• Friction: Rub hands to create lather. Apply friction for at least 20 seconds, cleaning palms, backs, wrists, between fingers, and under nails against the opposite palm.
• Rinse: Rinse thoroughly, keeping hands pointed downward so water flows from wrists to fingertips.
• Dry: Pat dry with clean paper towels, starting from fingertips to wrists. Discard immediately.
• Turn Off: Use a new, clean, dry paper towel to turn off the faucet, preventing re-contamination. Discard it.

Alcohol-Based Hand Rub (Sanitizer)

When hands are not visibly soiled, and there is no suspicion of spore-forming pathogens, alcohol-based hand rub is preferred.

• Procedure: Apply a dime-sized amount of the rub into the palm. Rub hands together, covering all surfaces, including between fingers and under nails. Continue rubbing until the hands are completely dry, which should take 15 to 20 seconds. Do not wipe the sanitizer off or fan your hands; the product must dry naturally to kill pathogens.

Standard Precautions

Standard Precautions are the basic level of infection control applied to the care of all residents, regardless of their diagnosed infection status. Standard precautions assume that all blood, body fluids, secretions, excretions (except sweat), non-intact skin, and mucous membranes may contain transmissible infectious agents.

Key Components:

1. Gloves: Wear clean, non-sterile gloves when touching blood, body fluids, secretions, excretions, non-intact skin, or mucous membranes. Change gloves between tasks on the same resident (e.g., after perineal care and before oral care) to prevent cross-contamination. Remove gloves immediately and perform hand hygiene before touching clean items or another resident.
2. Gowns, Masks, and Eye Protection: Wear these during activities likely to generate splashes of blood or body fluids.
3. Respiratory Hygiene: Cover mouth and nose with a tissue when coughing or sneezing, discard the tissue immediately, and wash hands. If no tissue is available, cough into the elbow.
4. Environmental Cleaning: Reusable resident care equipment must be disinfected between residents using facility-approved wipes. High-touch surfaces must be cleaned regularly.
5. Safe Handling of Linen: Soiled linen must be handled with minimal agitation. Hold soiled linen away from your uniform. Never place soiled linen on the floor, clean tables, or chairs. Place it directly into a soiled linen hamper.
6. Waste Disposal: Waste saturated with blood or body fluids must be disposed of in biohazard bags (red bags). Regular trash is for non-saturated items. Used needles and sharps must be placed immediately in puncture-resistant sharps containers. CNAs must never recap, bend, or break needles, and never reach into a sharps container.

Iowa Infection Control Oversight

Under Iowa Administrative Code 441 Chapter 81, facilities are subject to inspections by the Iowa Department of Inspections, Appeals, and Licensing (DIAL). If a facility has an outbreak of an infectious disease (such as Norovirus or influenza), the facility must report it to the Iowa Department of Health and Human Services (HHS) and institute strict isolation procedures. CNAs must strictly adhere to facility policies to avoid citations during these state audits, which can lead to civil penalties.

Realistic Exam Traps and Tips

• C. diff Exception: A common question asks what to do if a resident with C. diff needs assistance. Always choose handwashing with soap and water; sanitizer does not kill spores.
• Turning Off Faucet: Remember, you must turn off the faucet with a new, dry paper towel, not the towel used to dry your hands, and never with bare hands.
• Handling Linen: Never place dirty linen on the floor or clean surfaces, and never shake it.
• Universal Application: Standard precautions apply to all residents at all times, regardless of diagnosis.