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CNA · Basic Nursing Skills · 6 min read · Open lesson

Standard Precautions, Hand Hygiene and PPE

In this lesson you will
  • Identify the core components of standard precautions and when to perform hand hygiene using soap and water or alcohol-based hand rub.
  • Demonstrate the proper technique for handwashing and the correct sequences for donning and removing personal protective equipment (PPE).
  • Apply safe practices for handling linens, disposing of sharps, and responding to accidental exposures or compromised PPE within the nurse aide role.

Understanding Standard Precautions

Standard precautions are basic infection prevention practices that nurse aides use for every single resident, regardless of what diagnosis the resident has. You do not wait for a special sign or a specific medical condition to protect yourself and others. These practices apply whenever there is a chance of contact with blood, body fluids, non-intact skin, and mucous membranes. The only body fluid excluded from this rule is sweat, provided it does not contain visible blood.

In your daily work as a nurse aide, you will assist residents with personal care tasks like bathing, toileting, and mouth care. Because you may come into contact with saliva, urine, or open skin tears during these activities, standard precautions must guide your steps. By treating these substances as potentially infectious at all times, you protect your residents, your coworkers, and yourself from illness.

Clean and dirty utility rooms must be kept strictly separated in the care facility to avoid cross-contamination of supplies. Do not return supplies from an isolation room to clean storage unless facility policy permits it; reusable equipment must be cleaned and disinfected according to policy before it is used elsewhere. Keeping these work areas and materials separated stops microorganisms from spreading through clean items.

Exam tip. On your state exam, watch out for questions asking if standard precautions are needed for a resident who seems healthy or has no known infection. The answer is always yes, standard precautions are used for all residents regardless of their diagnosis.

Hand Hygiene Methods and Indications

Hand hygiene is the single most effective method to prevent the spread of infections in healthcare facilities. It includes two primary methods: washing hands with soap and water or using an alcohol-based hand rub. Use alcohol-based hand rub for routine hand hygiene when hands are not visibly soiled, but wash with soap and water after using the toilet, before eating, and after caring for a resident with suspected or confirmed Clostridioides difficile. However, alcohol-based hand rubs do not effectively destroy Clostridioides difficile spores.

Because of this limitation, nurse aides must wash their hands with soap and water whenever their hands are visibly soiled, and also after caring for a resident with suspected or confirmed Clostridioides difficile. Choosing the right hand hygiene method helps remove pathogens and spores and reduces the risk of spreading them.

There are clear moments during care when hand hygiene is mandatory. You must perform hand hygiene immediately before touching a resident, immediately after touching a resident, and before performing any clean or aseptic care task. You must also perform hand hygiene after contact with blood, body fluids, or contaminated resident surfaces, as well as immediately after removing gloves or other personal protective equipment.

Choosing the Proper Hand Hygiene Method
MethodWhen to UseKey Limitation or Rule
Soap and WaterWhen hands are visibly soiled, during care of patients with suspected or confirmed C. difficile during an outbreak, or if contact with spores is likely to have occurredMust be used because alcohol-based rubs cannot effectively destroy Clostridioides difficile spores
Alcohol-Based Hand RubRoutine hand hygiene when hands are not visibly soiledUse soap and water when hands are visibly soiled, during care of patients with suspected or confirmed C. difficile during an outbreak, or if contact with spores is likely to have occurred
Exam tip. Look out for test questions featuring a resident with Clostridioides difficile. Exam questions often try to trick you by suggesting an alcohol hand rub for speed. Remember: Clostridioides difficile spores require soap and water.

Step-by-Step Handwashing Technique

Proper handwashing requires careful mechanical action to clear away germs. Begin by wetting your hands with clean running water, which can be warm or cold, before you apply soap. While washing, nurse aides must be careful to avoid touching the sink basin or counter with their hands or uniform, as these surfaces are considered contaminated.

Once soap is applied, rub it vigorously over all surfaces of your hands for at least twenty seconds. Friction is the most critical element in mechanically removing pathogens during handwashing. As you scrub, clean thoroughly between your fingers, around the cuticles, under the fingernails, and around the wrists to reach every area where germs hide.

When you are ready to rinse, keep your hands lower than your elbows with your fingertips pointed downward under the running water so that water runs off the fingertips into the basin. After rinsing, dry your hands thoroughly from the fingertips upward to the wrists using clean paper towels. Finally, use a clean, dry paper towel to turn off the hand-operated faucet so your clean hands are not recontaminated by the fixture.

Exam tip. A classic exam trap involves the direction of water and drying. Always remember: hands lower than elbows, fingertips pointed down while rinsing, and dry from the clean fingertips upward toward the wrists.

Personal Protective Equipment: Selection, Donning, and Doffing

Personal protective equipment, or PPE, shields the nurse aide from contact with infectious materials. Common PPE items include gloves, gowns, masks, goggles, and face shields. Wear gloves whenever contact with blood, non-intact skin, mucous membranes, or body fluids other than sweat is possible. Disposable gloves must never be washed, sanitized, or reused. Gowns are worn to prevent blood and body fluids from contaminating your clothing and exposed skin; a gown must completely cover your torso from neck to knees and your arms to the wrists, and it must be tied securely at both the neck and waist. Masks protect the mucous membranes of the nose and mouth from splashes, sprays, and respiratory droplets, fitting snugly over both areas. Goggles protect your eyes, while a face shield protects your eyes and face.

When putting on (donning) PPE, follow the standard sequence: gown first, then mask, followed by eye protection, and finally gloves. Be sure to pull your gloves up over the cuffs of the gown sleeves so that no skin on your wrists or arms remains exposed. When you are wearing PPE, remember that the outside front and sleeves of the gown and the outside surfaces of the gloves are considered contaminated.

During care, avoid touching unnecessary surfaces with contaminated gloves. If you are caring for a resident and need to move from a contaminated body area to a clean body area, you must change your gloves and perform hand hygiene. When taking off (doffing) PPE, gloves are typically removed first because they are the most contaminated. The standard sequence for removing PPE is gloves, goggles, gown, and then mask. Avoid touching the outside of used gloves or the front and sleeves of a used gown; handle gown ties carefully and touch only the inside of the gown when removing it.

Nurse aides must remove gloves and gown before leaving the resident's room. If you are wearing a respirator, remove it after leaving the room and closing the door, following posted precautions and facility policy. Hand hygiene must always be performed immediately after removing personal protective equipment.

PPE Donning and Removing Sequences
OrderDonning Sequence (Putting On)Removing Sequence (Taking Off)
1stGown (cover neck to knees, tie at neck and waist)Gloves (most contaminated, remove first)
2ndMask (fit snugly over nose and mouth)Goggles (or eye protection)
3rdEye Protection (goggles or face shield)Gown (touch inside only, roll away)
4thGloves (pull cuffs over gown sleeves)Mask (remove last, or outside room if respirator)

Safe Care Practices, Linen Handling, and Exposure Protocols

To minimize infection risks during daily care, organize your workflow from cleaner areas to dirtier areas whenever possible. Change gloves and perform hand hygiene as needed during this process so you do not spread microorganisms across different parts of the resident's body. Furthermore, any shared resident care equipment must be thoroughly cleaned and disinfected between uses on different residents.

Handling linens correctly is another essential safety duty. Hold clean linen away from your uniform to prevent cross-contamination, and never place clean or soiled linen on the floor. Put clean linen on a clean, dry surface. When handling soiled linen, roll it with the dirty side facing inward and place it directly into the designated laundry container or hamper. Never shake clean or soiled linen, as shaking can disperse microorganisms into the surrounding air.

Handling sharps safely protects everyone from bloodborne risks. Disposable razors must be discarded immediately after use into a puncture-resistant, labeled sharps container. Never touch or recap used needles or other sharps, and never push items down into an overfilled container; instead, report an overfilled sharps container to the nurse. If your PPE tears or is punctured during care, stop care, remove and replace the equipment safely, perform hand hygiene as needed, and report any possible exposure to the nurse. If you experience an accidental exposure, immediately wash exposed skin with soap and water or flush exposed eyes, nose, or mouth with water, and then report the exposure to the nurse right away.

Common mistakes

  • Shaking soiled or clean linens, which disperses microorganisms into the air instead of keeping them contained.
  • Using an alcohol-based hand rub after providing care for a resident with Clostridioides difficile, which fails to destroy the spores.
  • Placing clean or dirty linen on the floor, rather than using a clean, dry surface for clean linen and placing dirty linen directly into a laundry hamper.
  • Touching the outside front or sleeves of a worn gown during removal instead of untying it and touching only the inside surfaces.

Summary

  • Standard precautions are applied to all residents regardless of diagnosis, covering blood, non-intact skin, mucous membranes, and all body fluids except sweat without visible blood.
  • Hand hygiene is the single most effective way to prevent infection; use soap and water when hands are visibly soiled, during care of patients with suspected or confirmed C. difficile during an outbreak, or if contact with spores is likely to have occurred.
  • For handwashing, rub hands together vigorously for at least fifteen seconds, covering all surfaces of the hands and fingers; rinse with water and dry with disposable towels.
  • The standard order for putting on PPE is gown, mask, eye protection, and gloves; the standard order for removal is gloves, goggles, gown, and mask.
  • Linens must never touch the floor or your uniform, should never be shaken, and soiled linens must be rolled dirty-side inward and placed directly into a hamper.
  • Do not recap contaminated sharps unless the employer can demonstrate that no alternative is feasible or that a specific medical or dental procedure requires it; in those circumstances use a mechanical device or one-handed technique; dispose of razors immediately in a labeled sharps container, and report overfilled containers, damaged PPE, or fluid exposures to the nurse immediately.

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Original lesson written for CNA practice · updated November 2, 2026. Exam names are trademarks of their owners; tests.global is not affiliated with them.