Why is it important for nurses to understand the concepts of infection and control?
To avoid contamination and acquiring infection.
Infection- invasion of a susceptible host by pathogens or microorganisms resulting to disease.
Colonization- presence and growth of microorganisms within a host but without tissue invasion or damage.
Communicable disease- infections disease that can be transmitted directly from one person to another.
Matic- carries symptoms.
A -means absence
CHAIN OF INFECTION
Infectious Agent
Reservoir
Portalofexit
Modeoftransmission
Portalofentry
Susceptible host
TYPE OF NORMAL FLORA
Resident Flora
Transient flora
Resident flora- microbes that are always present.
Transient Flora- Microbes that live in our body In a period of time then move and or die.
Virulence- potential for microorganisms to cause disease. It has the ability to produce disease.
Handwashing- the most effective way to break the chain of infection.
FOODS OF MICROORGANISMS
Food- wound
Oxygen- anaerobic bacteria
Water- mosquito
Temperature- too hot or cold environment
Ph- alkaline or acidic
Light- dark areas, warm, moist
How do we control or eliminate reservoirs of infections?
Clean roofsandplants
Maintain good hygiene
Proper disposalofwaste
How do we control the portal entry/exit?
Sneezingandcough etiquettes
Proper protocols
Oral hygiene
PRECAUTIONS:
Standard Precaution- Hand washing & PPE
Contact Precaution- sore eyes
Droplet substances- Big substances (TB)
Airborne precaution- circulates around the air (COVID)
MODE OF TRANSMISSION:
Direct contact - person to person
MODE OF TRANSMISSION:
Indirect contact - personal contact of a susceptible host with contaminated inanimate object.
MODE OF TRANSMISSION:
Droplet - largest particles that travels up to 3 feet during coughing and sneezing.
MODE OF TRANSMISSION:
Airborne - droplets suspended in the air during coughing/sneezing.
MODE OF TRANSMISSION:
Vehicle - carry an agent from reservoir to susceptible host.
Vector - a carrie of disease-causing agent from an infected individual to a non-infected individual.
How do we protect the host?
Good hygiene
Precaution
PPE
Hand washing
Immunization
INFECTIOUS PROCESS:
Localized infection - localized symptoms such as pain, tenderness, warmth and redness.
INFECTIOUS PROCESS
Systemic infection - Affects entire body system and can be fatal if undetected.
INFECTION STAGE:
Incubation period
Prodromal stage
Illness stage
Convalence
INFECTION STAGE:
Incubation period - interval between entrance of pathogen into body and appearance of first symptom.
INFECTION BY STAGE:
2. Prodromal Stage - interval from onset of non-specific signs and symptoms to more specific symptoms.
INFECTION BY STAGE:
3. Illness stage - interval when patients manifest signs and symptoms specific to type of infection.
INFECTION BY STAGE:
4. Convalence - interval when acute symptoms of infection disappear.
DEFENSES AGAINST INFECTION: (NBIVIT)
NormalFlora
Bodysystemdefences
Inflammation
Vascular and cellularresponse
Inflammatoryexudate
Tissuerepair
DEFENSE AGAINST INFECTION:
Normal Flora - mixture of bacteria and fungi that are found in any anatomical site.
DEFENSE AGAINST INFECTION:
Bodysystemdefences:
Tears
Skin
Large Intestine
Saliva
Respiratory tract
Stock Bladder
Stomach
DEFENSE AGAINST INFECTION:
Inflammation - cellular response of the body to injury, infection or irritation.
DEFENSE AGAINST INFECTION:
Inflammatory exudate:
Plasma
RBC
WBC
DEFENSE AGAINST INFECTION:
Tissue Repair - defensive reconstructive.
HAI- Healthcare Associated Infections - occur as a result of invasive procedures, antibiotic administration, the presence of MORO'S and breaks in infection and prevention and control activities.
HAI:
Exogenous
Endogenous
Iatrogenic infections - caused by invasive proceduress or therapeutic procedures.
FACTORS INFLUENCING INFECTION AND PREVENTION, CONTROL:
Age
Nutritional Status
Stress
Disease process
NURSING PROCESS : (ADPIE)
Assessment
Diagnosis
Planning
Implementation
Evaluation
NURSING PROCESS (ADPIE)
Assessment:
Determine how the patient feels about the illness or risk of infection.
Asses his defense mechanism, susceptibility, and knowledge of how infections are transmitted.