Infection prevention and control Flashcards
What is infection prevention
- Prevents patients and
health workers from being harmed by avoidable infection and antimicrobial stewardship
What does infection control include
- Vaccination against
preventable diseases and antibiotic prophylaxis for surgical
procedures and recurrent infections
Antimicrobial resistance
- Prevent infections slows antimicrobial resistance
- Slow the prescribing of antibiotic drugs
How is infection spread
- Microrganism enter body increase number and cause a reaction in the body
Three things which necessary for infection to occour
- Places where micro-organisms live
- Way for micro-organisms to enter the body
- Way microorganism enter the body and are moved to susceptiable person
Sources
- Healthcare workers
- Visitors and household members
- Surfaces
- Indwelling medical devices
Susceptible person
- Not vaccinated person weakened immune system
- Microoganism ever via body and invade tissues, multiply, and cause a reaction
- IV catheters and surgical incisions can provide an entryway
Transmission
- Moved to susceptiable person perople and medical equipment
- Touching spray, splashing, sharps injuries
Contact spread
- Move by touch
- MRSA - RESISTANCE to fluconazole ,
C.difficile - Lives in flora disrupt then causes disease
Droplet respiratory spread
- Coughs or sneezes, creating droplets which carry micro-organisms short distances
- Land on persons eyes nose and mouth 2m distance
Aerosol Respiratory Spread
- Tiny particles that survive on air currents over great
distances - Stay in air TB and measels cough, talk, or sneeze micro-organisms into the air
- aerosolized by medical equipment e.g. ventilation, CPAP, CPR
PPE of contact
Handwashing
Gloves and Aprons
Droplet PPE
- Fluid resistant surgical mask
Aerosol
- FFP3 mask and eye protection
Correct use of gloves
- Single use gloves - clean
- Make sure it fits correctly and remove gloves once task is complete
- Avoid touching edges
- clean hands after
Define
Standard Precautions
- They protect healthcare providers from infection and prevent the spread of infection from patient to patient
Transmission-Based Precautions
- Addition to Standard Precautions for patients who may be infected or colonized with certain infectious agents
- PPE provided
Standard precautions examples
- Hand hygiene
- Bare below the elbow
- Follow respiratory hygiene / cough etiquette principles
- PPE if handling potentially infectious material e.g. body fluids
- Cleaning and disinfecting equipment and the environment
appropriately - Proper handling of needles and other sharps
5 moments of hand hygine
- Before touching patient
- Clean before aseptic procedure
- After body fluid exosure risk
- After touching patiient surroundings
Healthcare associated infection
- As any infection acquired in relation to the delivery of healthcare in
its widest sense in GP and hospital
Clostridium difficile
- Causes infection when the guts normal flora is disrupted or if immunocompromised - previous treatmen using antibiotics
- Toxins damage lining of colon - diarrhoea to perforation of
the colon, sepsis and death - Spores spead in the hospital setting
Screening for resistant organisms
- High risk are screened
- Mangement for patient that is colonised by resistant organism
- Antibiotic therapy may also need to be adjusted to ensure that treatment given cover this additional resistance
Screening of MRSA
Nose, throat, groin + any wounds
GRE and CPO screening
- Use a rectal swab
Decolonisation
- Positive MRSA use decolonisation therapy
- Nasal decolonisation disinfect hair and skin for 5 days
- Re-screened and decolonisation repeated reduce the risk of spread of resistant organisms
Cleaning and decontamination
- Regular cleaning and disinfecting surfaces vital
- Stethoscopes should also be
decontaminated between patients
Medical devices
- Urinary catheters and IV lines provides route for infetion to enter
- Remove ASAPto decrease risk
- Switch from IV to oral when required
Isolation
- Nurse patient is single rooms
- Priority risk in indavidual rooms or barrier nursed in bays instead
- Don and Doff appropriately
Vaccinations
- Available against many viral and bacterial infections
- Children MMR and meningitis vaccines
Pneumococcal vaccination
- Streptococcus pneumoniae pathogen meningitis, sepsis and pneumonia
- Given to childhood and risk groups
Antibiotic prophylaxis
- Given to cover surgical
procedures where there is potential for contamination - Reduces reoccouring infections such as UTIs
Surgical prophylaxis
- Antibotics given via IV before operations repeated doses are given for long operations or
if there is significant blood loss
UTI or cellulitis Antibiotic prophylaxis
- Low daily dose of antibiotics used for a limited period to break cycle of infection
- Improve underlying factors