C11- Infection Prevention Flashcards by Amelia Heusuk

Infection definition

A disease state that results from the presence of pathogens (disease producing organisms) in or on the body

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Chain of infection (cyclic process includes 6 components):

Infectious agent
Reservoir
Portal of exit
Means of transmission
Portals of entry
Susceptible host

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What is an infectious agent?

Bacteria
Virus
Fungi
Parasite

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What is a reservoir?

People
Animals
Soil
Food
Water

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What are portal of exit?

Coughing/sneezing
Bodily secretions
Feces

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What is “means of transmission”?

Direct contact
Indirect contact
Vectors

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What is portal of entry?

Mouth
Nose
Eyes
Cuts in skin

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What is a susceptible hot?

ANYONE!
More risk associated with:
-elderly
-infants
-immunocompromised

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What are the four stages of infection?

Incubation
Prodromal
Full stage of illness
Convalescent

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What is the incubation period?

Time between invasion to appearance of symptoms
(Growing and multiplying) (lengths vary)

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What is the prodromal stage?

Most infectious time, vague symptoms

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What happens in the full stage of illness?

Specific signs and symptoms
(Type of infection determines length) (local vs systemic)

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What is the convalescent period?

Recovery period
(S&S disappear)

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Inflammatory response is?

A protective mechanism that eliminates the invading pathogen and allows for tissue repair.

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Immune response involves?

Specific body responses to an invading foreign protein, such as bacteria or the body’s own proteins

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Foreign material in the body is called

Antigen

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Body responds to antigens by producing?

Antibodies

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Cellular immunity, what cells increase or decrease due to present antigen

Leukocytes (WBC) ————> Leukocytosis (elevated WBC count)

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Early detection and surveillance techniques: Inquire about?

Immunization status

Previous or recurring infections

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Early detection and surveillance techniques: observe for signs and symptoms of infection, what two types of infections would you look for?

Local
Systemic

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Early detection and surveillance techniques: laboratory data? What should you look for?

WBC in a CBC ——-> CBC with differential
Erythrocyte sedimentation rate
Urine, sputum
Cultures

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Neutrophils do what?

Kill bacteria, fungi, and foreign debris

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Monocytes do what?

Clean up damaged cells

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Eosinophils do what?

Kill parasites, cancer cells and involved in allergic response

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Lymphocytes

Help fight viruses and make antibodies

Basophils do what?

Involved in allergic response

Pyrexia is?

Fever

Normal oral temperate

97.7-99.5*F

Temp greater than or equal to 101*F indicates:

Infection - usually accompanied by increased HR and BP

Fever between 104*F and 106*F (hyperpyrexia) may cause

Brain injury

Causes of pyrexia

Dehydration Bacterial/viral infection Tissue injury (MI, cancer, trauma, surgery)

Hyperthermia is?

Hypothalamic set point is not changed (mechanisms that control body temp are ineffective)

Neurogenic fever

Hypothalamic damage intercranial damag, bleeding, or ICP ****** will not respond to antipyretics *******

Fever of unknown origin (FUO) criteria?

101*F or higher asking 3 weeks or longer w/o a diagnosed cause

Non pharmacological intervention to promote temperature regulations?

Lower room temp Reduce layers (blankets and clothing) Cooling blankets and packs Increase oral fluid intake

What are 6 things a nurse can diagnose relating to infection control? (REMEMBER ITS A NURSING DIAGNOSIS)

RISK for infection Social isolation Impaired oral mucous membrane (dental hygiene, trauma, med s/e) Risk for shock Risk for ineffective thermoregulation Anxiety

When in the planning part of the nursing process, what should the nurse demonstrate for the patient?

Effective hand hygiene and good personal hygiene practice Proper disposal of soiled articles The necessit of proper immunization Stress-reduction techniques

Asepsis is?

Includes all activities to prevent infection or break the chain of infection

Medical asepsis is defined as?

Clean technique- Barriers: washing hands and PPE

Surgical asepsis is defined as

Sterile techniques- Objects free from microorganisms (IV & Foley insertion)

Performing hand hygiene is?

THE most effective way to help prevent the spread of infectious agents -soap & water -antiseptic hand rubs

If hands are not visibly soiled, alcohol-based hand rubs are recommended because they:

Save time Are more accessible Easy to use Reduce bacterial count on hands

Alcohol does not kill C. Diff spores- what is the recommended hand hygiene when working with a patient with C. Diff?

Soap and water Gloves

What are the 5 moments for hand hygiene?

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

What are HAIs?

Health Care-associated infection

HAIS Most common types

UTI- improper use of cathers 70-80% of all UTIs are due to the use of an in dwelling urinary catheter

MRSA (methicillin-resistant staphylococcus Aureus)

Normally found in nasal mucous membranes, on the skin, and in the respiratory and GI tracts. Approx 1/3 of people in the US are colonized with staph

Patients who have surgery or invasive procedures, have invasive devices or are immunocompromised are at risk for developing?

MRSA infection

What is used to treat MRSA

Vancomycin

VRSA is

Vancomycin- resistant staphylococcus aureus

VRE is

Vancomycin- resistant enterococci

C. Difficile is

An organism that normally resides in GI tract. -when broad spectrum antibiotics are RX or taken for long periods of time, helpful bacteria are destroyed and C. Diff grows out of control- creating BACTERIAL IMBALANCE

C. Diff symptoms:

Watery diarrhea Fever Mild abdominal cramping

Disinfection

Destroys all pathogenic organisms (except spores)

Sterilization:

Destroys all microorganisms (including spores)

PPE includes:

Gowns Gloves Masks Eyewear

Standard precautions:

Used in the care of ALL PATIENTS regardless of diagnosis or infection status May apply to blood, all bodily fluids, secretions and excretions except sweat, non intact skin and mucous membranes

Transmission-based Precautions

Used in ADDITION to standard For patients with suspected infection Pathogens that can be transmitted VIA: Airborne Droplet Contact

Neutropenic precautions:

For immune compromised patients: -caregiver must be healthy -restrict ill visitors

Needlestick safety and prevention act (OSHA)

ID and provide safer medical devices that reduce or eliminate injuries from sharps Provide engineering controls for sharps disposal containers, self sheathing needles and other safety devices Keep sharps injury log

C11- Infection Prevention Flashcards

(60 cards)