Immunity Flashcards
Define immunity
The normal physiologic response to microorganisms and proteins as well as conditions associated with an inadequate or excessive immune response.
Scope of Concept - Immunity
Ranges from hypo- or suppressed immune response to hyper- or exaggerated immune response
- Normal immune system or a hypo immune system (suppressed or immunocompromise)
Types of Immune Response
- Innate Immunity: born with it; tell new parents don’t go to a place with a lot of new people because they do not have immunities to them
- Active Acquired Immunity: vaccinations, getting sick and building antibodies
- Passive Acquired Immunity: breastfeeding, maternal blood; every time the mom nurses, the baby is taking in immunities they would not normally have if they were not breastfeeding
Consequences of Suppressed Immune Response
Infection:
- Bacterial
- Fungal
- Viral
Cancer: chemo attacks cancer cells and blood cells
Symptoms and Clinical Findings of Suppressed Immune Functioning
Symptoms:
- Report of frequent infections
- Report of poor wound healing
- Fatigue
- Malaise: overall just ugh feeling
- Weight loss
- Feeling like they are sick all the time
Clinical findings:
- May appear poorly nourished or have wasting syndrome
- May have chronic wounds: non-healing wounds present
- May have enlarged lymph nodes
- Presence of opportunistic infection: odd infections humans never get
Consequences of Exaggerated Immune Response
- Acute Hypersensitivity Reaction: localed effect, systemic effect
- Chronic body-wide system disease: Destruction of body tissue, abnormal organ growth, change in organ function
- After traumatic event, immune system goes wack
Consequences of Exaggerated Immune Response
- Acute Hypersensitivity Reaction: localed effect, systemic effect
- Chronic body-wide system disease: Destruction of body tissue, abnormal organ growth, change in organ function
- After traumatic event, immune system goes wack
Symptoms and Clinical Findings of Exaggerated Immune Functioning
Symptoms:
- Allergic symptoms: exaggerated immune response to whatever they are allergic to
- Pain
- Fatigue
- Fever
Clinical findings:
- Allergic response
- Mild allergic response
- Severe allergic response
- Autoimmune disorders
- Can range from vague findings to findings associated with organ failure
Diagnostic Testing
Primary Testing:
- Red blood cell count and white blood cell count with differential
- Fluorescent antinuclear antibody (ANA)
- C-reactive protein (CRP)
- Erythrocyte sedimentation rate (ESR)
- Allergy testing
- Genetic testing
- Rheumatoid factors (RFs)
- Western blot test
- Organ function tests
Primary Prevention
- Immunizations
- Avoiding high-risk behaviors
- Adequate nutrition
- Exercise
- Infection control measures
Normal Physiological Process of Immune Response
- Major histocompatibility complex proteins
- Organs comprising the immune system
- Origin of cells in an immune response
- B and T lymphocytes
- Antibody production
- Phagocytes
- Complement system
- Lymphocyte function in an immune response
- Dendritic cell function in an immune response
Examples
- Hodgkin’s and non-Hodgkin’s lymphoma
- HIV disease
- Anaphylaxis
- Allergic rhinitis
- Systemic lupus erythematosus
- Type 1 diabetes mellitus
- Multiple sclerosis