Comprehensive Notes on Hand Washing Techniques and Hand Hygiene Protocols

Overview of Hand Hygiene

• Hand hygiene is the easiest and most important way to prevent the spread of infection.
• Hands are used for almost everything, making them easily contaminated.

Purposes of Hand Hygiene

• To clean contaminated hands.
• To remove dirt.
• To minimize the number of microorganisms.
• To prevent cross-infection and nosocomial (hospital-acquired) infections.

Indications for Hand Hygiene

• General Indications:

  • When hands are visibly soiled.
  • Before and after caring for a patient.
  • After contact with organic material, such as feces, wound drainage, and mucus.
  • In preparation for an invasive procedure, such as suction catheterization or injections.
  • Before changing a dressing or having contact with open wounds.
  • Before preparing and administering medications.
  • After removing disposable gloves.
  • Before and after using the toilet.
  • Before and after eating.
  • At the beginning and end of the shift.

• The 5 Key Moments for Hand Hygiene:

  • Moment 1: Before touching a patient.
  • Moment 2: Before a clean or aseptic procedure.
  • Moment 3: After body fluid exposure risk or a procedure.
  • Moment 4: After touching a patient.
  • Moment 5: After touching a patient's surroundings.

Hand Flora

• Resident Flora:

  • Deep seated in the skin layers.
  • Difficult to remove.
  • Functions as part of the body's natural defense mechanism.
  • Associated with infection following surgery or invasive procedures.

• Transient Flora:

  • Superficial on the skin surface.
  • Transferred with ease to and from hands.
  • Acts as an important cause of cross-infection.
  • Easily removed with good hand hygiene.

Methods of Hand Hygiene

• Hand Washing: Washing hands with plain soap and water.
• Antiseptic Hand Wash: Washing hands with water and soap or another antiseptic agent.
• Alcohol-Based Hand Rub: Rubbing hands with an alcohol-containing preparation (used after hand washing or when hands are not visibly soiled).
• Surgical Antisepsis: Hand washing with antiseptic soap or alcohol-based hand rub prior to surgical operations by operating personnel.

Guidelines for Hand Care and Accessories

• Key focus areas for hand care include nails, rings, hand creams, cuts and abrasions, and skin problems.
• Rings and Jewelry:
  • Studies demonstrate that skin underneath rings is more heavily colonized with microorganisms than comparable areas of skin on fingers without rings.
• Fingernails:
  • Keep fingernails short, not exceeding $\frac{1}{4}\text{ inch}$.
  • Avoid artificial nails.
  • Avoid wearing nail polish.

Required Equipment

• Sink with warm and cold running water.
• Tissue paper or small towels.
• Trash can.
• Nail cleaner.
• Soap dispenser or soap and soap dish.

Hand Hygiene Procedure: Step-by-Step Actions and Rationales

• Step 1: Inspect hands.
  • Action: Inspect hands, observing for visible soiling, breaks, or cuts in the skin and cuticles.
  • Rationale: Poor personal hygiene and open areas of the skin provide sites in which microorganisms are able to grow.
• Step 2: Determine level of contamination.
  • Action: Determine the amount of contamination on the hands.
  • Rationale: Determines the specific type of hand hygiene needed.
• Step 3: Assess surrounding areas.
  • Action: Assess areas around the skin that are contaminated.
  • Rationale: Prevents contamination of hands during and after the hand hygiene procedure.
• Step 4: Remove jewelry.
  • Action: Remove jewelry except a plain wedding band; push watch and long sleeves above the wrist.
  • Rationale: Microorganisms collect in jewelry and watch bands; removing jewelry makes it easier to wash all areas of hands and wrists.
• Step 5: Adjust water supply.
  • Action: Adjust the water to an appropriate temperature and force.
  • Rationale: Water that is too hot or too cold can chap skin, and excessive force can cause splashing, spreading microorganisms to other areas, especially clothing.
• Step 6: Wet hands and wrists.
  • Action: Wet hands and wrists under running water, always keeping hands lower than elbows.
  • Rationale: Hands are the most contaminated part of the upper extremities; water should flow from the wrists (least contaminated areas) over the hands, and then down the drain.
• Step 7: Apply soap.
  • Action: Lather hands with liquid soap.
  • Rationale: Soap lather emulsifies fat and aids in cleaning.
• Step 8: Perform rubbing technique using friction.
  • Action: Wash hands thoroughly using a firm, circular motion and friction.
  • Rationale: Helps loosen soil and microorganisms, both resident (normally present) and transient (acquired from contamination).
  • Sub-steps for hand rubbing:
  • Step 8a: Rub palms together.
  • Step 8b: Rub the back of both hands.
  • Step 8c: Interlace fingers and rub hands together.
  • Step 8d: Interlock fingers and rub the back of fingers of both hands.
  • Step 8e: Perform rotational rubbing of the left thumb clasped in the right palm and vice versa (rub thumb in a rotating manner followed by the area between index finger and thumb for both hands).
  • Step 8f: Perform rotational rubbing, backwards and forwards, with clasped fingers of the right hand in the left palm and vice versa (rub fingertips on palm for both hands).
  • Step 8g: Rub both wrists in a rotating manner.
• Step 9: Washing duration and re-lathering.
  • Action: Wash for $15\text{ to }30\text{ seconds}$, rinse thoroughly, re-lather, and wash another minute, using continuous friction.
  • Rationale: Rinsing removes loosened microorganisms, and re-lathering ensures more thorough cleaning. The greater the contamination, the greater the need for longer washing.
• Step 10: Complete rinsing.
  • Action: Rinse wrists and hands completely, keeping hands lower than elbows.
  • Rationale: Water should run from cleaner areas (the wrists) over the hands, and then down the drain, rinsing microorganisms away.
• Step 12: Dry hands.
  • Action: Dry hands thoroughly with paper towels. Start by patting at fingertips, then hands, then wrists and forearms.
  • Rationale: Prevents chapping. Drying should progress from clean to less clean, and the cleanest areas are now the fingers and hands.
• Step 13: Turn off water source.
  • Action: Turn off faucets using a dry paper towel.
  • Rationale: Keeps clean hands from touching contaminated faucet handles.
• Step 14: Apply hand lotion.
  • Action: Use hospital-approved hand lotion if desired.
  • Rationale: Keeps skin soft and lubricated so it will not crack easily.
• Step 15: Post-washing inspection.
  • Action: Inspect hands and nails for cleanliness.
  • Rationale: Ensures thorough cleanliness of hands and nails.
• Step 16: Patient education.
  • Action: Provide patient teaching by explaining the importance of hand hygiene to the patient.
  • Rationale: Helps the patient understand that hand hygiene slows down the spread of infection.

Infection Control Principles

• Bacteria and viruses are pathogenic agents capable of causing severe illness and death.
• Hand hygiene remains mandatory across all contexts and procedural environments to prevent infectious transmission.