3 CONDICIONES MEDIO AMBIENTE DE TRABAJO Bioseguridad en el ámbito hospitalario

Biosecurity in Hospital Settings

Importance of Biosecurity

• Biosecurity principles are crucial in hospital environments, particularly due to the risk of infection transmission from sick patients, such as hepatitis and other infectious diseases.

• The primary goal of biosecurity is to minimize health risks that could endanger individuals, families, and communities across various settings including homes, schools, and workplaces.

Vulnerability of Healthcare Workers

• Healthcare personnel are at high risk for infectious diseases due to constant contact with contaminated materials and patients.

• Emergency department workers face heightened exposure as they provide immediate care to trauma patients who may have serious conditions like dehydration or gunshot wounds.

Role of Nursing Staff

• Nurses play a critical role in implementing biosecurity measures to protect themselves and their patients from hospital-acquired infections.

• Their responsibilities include direct patient care which necessitates strict adherence to hygiene protocols to prevent the spread of infections.

Historical Context of Biosecurity

• The concept of biosecurity originated during the Crimean War (1854-1856), where Florence Nightingale's efforts significantly reduced mortality rates by improving sanitary conditions in hospitals.

• Biosecurity refers to practices aimed at preventing unintentional exposure to pathogens and toxins, emphasizing preventive measures against biological risks.

Core Principles of Biosecurity

• Biosecurity aims to reduce the transmission risk of microorganisms through established safety protocols related to blood and bodily fluids exposure.

• It encompasses preventive measures designed to safeguard healthcare workers, patients, and the community from biological hazards.

Three Pillars of Biosecurity

• The three foundational pillars are:

• Universality: All healthcare workers must follow standard precautions regardless of patient serology status.

• Protective Barriers: Use appropriate materials (e.g., gloves) to minimize direct contact with potentially infectious fluids.

Biosecurity Measures in Healthcare

Overview of Biosecurity Measures

• Biosecurity measures involve the proper devices and procedures for disposing of contaminated materials used in patient care, aiming to prevent disease transmission between patients and healthcare personnel.

• The primary goal is to avoid accidents resulting from healthcare activities, ensuring protection for both patients and health staff. Compliance with these measures is mandatory.

Universal Precautions

• Established by the CDC in 1987, universal precautions are guidelines developed to prevent infection transmission from bloodborne pathogens like HIV and Hepatitis B.

• All healthcare institutions are recommended to adopt a policy termed "universal precautions," which includes techniques aimed at protecting health workers from potential infections during patient care.

Key Principles of Universal Precautions

• It is essential to treat all patients' bodily fluids as potentially infectious, regardless of their diagnosis upon hospital admission.

• Health workers must assume that any patient could be infected with transmissible agents through blood, necessitating appropriate protective measures.

Identifying Potentially Infectious Fluids

• Bodily fluids considered potentially infectious include blood, vaginal secretions, breast milk, cerebrospinal fluid, pleural fluid, amniotic fluid, pericardial fluid, synovial fluid, and any other fluids visibly contaminated with blood.

• Other fluids like feces or urine are not typically deemed infectious unless visibly contaminated with blood.

Protective Equipment Usage

• One key precaution is avoiding skin or mucosal contact with blood; this requires implementing personal protective equipment (PPE).

• Handwashing is highlighted as the most effective method for preventing cross-infection among patients and staff. It should occur before starting work and after contact with bodily fluids.

Hand Hygiene Practices

• Proper handwashing involves using soap or detergent to suspend microorganisms effectively. After washing hands thoroughly, they should be dried preferably using disposable towels.

Glove Usage Guidelines

• Gloves should be worn during any procedure involving contact with blood or other body fluids but are not a substitute for handwashing.

• Double-gloving can reduce the risk of occupational exposure by 25%, although it does not eliminate risks entirely.

Additional Protective Measures

• Masks are necessary when there’s a risk of splashes or expulsion of contaminated liquids; they must have fluid-repellent layers and high filtration efficiency.

Infection Control in Healthcare Settings

Importance of Microorganisms in Hospitals

• Microorganisms, such as staphylococci, are prevalent in hospital air and are considered sources of infection and vehicles for transmitting pathogens.

• To mitigate risks during sterile procedures, the use of head coverings (cofia or gorro) is recommended to prevent contaminated particles from falling onto external fields.

Universal Precautions for Healthcare Workers

• The use of long, impermeable gowns (camisolines) is essential during any procedure involving exposure to bodily fluids; they are also necessary for preventive isolation measures.

• Healthcare workers must refrain from performing duties if they have skin injuries such as abrasions, burns, lacerations, or dermatitis to avoid direct contact with fluids and contaminated equipment until full healing occurs.

Special Considerations for Pregnant Healthcare Workers