Understanding Pathogens and Infection Study Guide
This guide covers the fundamental concepts of microbiology and infectious diseases. It explains the different types of relationships between microbes and hosts, including mutualism, commensalism, and pathogenicity. You will learn about the key factors that contribute to a pathogen's ability to cause disease, such as virulence, infectivity, and toxigenicity. The guide also details how pathogens are classified, the mechanisms by which they spread (chain of infection), and how the body responds to
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Fundamentals and Pathophysiology of Altered Immune Function
Fundamentals of Altered Immune Function
This content explores innate and adaptive immunity, including lymphocyte maturation, antigen specificity, and the cellular components of the immune response.
- Innate immunity
- Adaptive immunity
- Lymphocytes
- B cells
- T cells
- Cell-mediated immunity
- Humoral immunity
- Antigen specificity
- Memory cells
- Cytotoxic T cells
- CD4 cells
- Suppressor cells
- Natural Killer cells
- Bone marrow
- Lymphatic organs
- Autoimmunity
- Hypersensitivity
- Alloimmunity
Innate and Adaptive Immune Processes
Immune processes involve innate immunity as an inflammatory process and adaptive immunity through active or passive mechanisms involving T and B lymphocytes.
- Innate immunity
- Adaptive immunity
- Active immunity
- Passive immunity
- Inflammatory process
- Phagocytes
- Physical barriers
- Specificity
- Diversity
- Memory
- Self and non-self recognition
- Autoimmune disease
- Antibodies
- Plasma cells
- IgM
- IgG
- IgA
- IgD
- Primary adaptive immune response
- Secondary adaptive immune response
Processes of Altering Immune Function
The process of altering immune function includes host defense failure, hypersensitivity, autoimmunity, and alloimmunity.
- Host defense failure
- Hypersensitivity
- Autoimmunity
- Alloimmunity
- Immunodeficiency
- Antigenic variation
- Viral latency
- Type 1 hypersensitivity
- Type 2 hypersensitivity
- Type 3 hypersensitivity
- Type 4 hypersensitivity
- Anaphylaxis
- Cytotoxic T cells
- Graft versus host disease
Anaphylactic Reaction and Hypersensitivity Pathophysiology
This content examines anaphylactic reaction pathophysiology, including IgE-mediated responses, mast cell degranulation, and medical treatments for hypersensitivity reactions.
- Anaphylactic reaction
- Type 1 hypersensitivity
- IgE-mediated response
- Mast cell degranulation
- Histamine
- Vascular permeability
- Bronchial smooth muscle constriction
- Vascular smooth muscle dilation
- Angioedema
- Epinephrine
- Antihistamines
- Desensitization
- Allergy testing
Pathophysiology of Rh Isoimmunization
Rh isoimmunization involves Type II cytotoxic antibody-mediated reactions where maternal antibodies attack fetal Rh-positive red blood cells.
- Rh isoimmunization
- Type II cytotoxic antibody-mediated reaction
- Direct antigen-antibody hypersensitivity
- Hemolysis
- Kernicterus
- Cerebral palsy
- Amniocentesis
- Fetal blood sampling
- Rh immunoglobulin
- Passive immunity
- Exchange transfusion
Altered Ventilation and Diffusion
Altered Ventilation and Diffusion Mechanisms
Discuss pathogenesis of common infectious and inflammatory lung disorders and differentiate between mechanisms causing disorders of ventilation and diffusion.
- Ventilation
- Inspiration
- Expiration
- Tidal volume
- Vital capacity
- Forced vital capacity
- Forced expiratory volume in 1 second
- Residual volume
- Total lung capacity
- Diffusion
- Partial pressure
- Solubility of gas
- Oxygen saturation
- Oxyhemoglobin
- Hypoxemia
- Hypoxia
- Hypercapnia
- Impaired ventilation-perfusion matching
- Pulmonary function tests
Infection, Inflammation, and Tissue Repair Processes
Phases and Manifestations of Infection
This content explores the phases of acute infection, clinical manifestations, and diagnostic procedures for identifying microorganisms.
- Phases of acute infection
- Exposure
- Incubation
- Prodrome
- Acute clinical illness
- Convalescence
- Bacteremia
- Septicemia
- Septic shock
- Antibiotic resistance
- Antimicrobial stewardship
- Culture and sensitivity
- White blood cell count
- Erythrocyte sedimentation rate
- Urinary tract infection
- E. coli
Phases and Manifestations of Infection
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Inflammation and Tissue Repair Processes
Biological processes of defense inflammation and tissue healing involving the human immune system and inflammatory mediators.
- First line of defense
- Second line of defense
- Inflammatory mediators
- Mast cells
- Histamine
- Prostaglandins
- Clinical manifestations of acute inflammatory response
- Calor (Heat)
- Loss of function
- Vasodilation
- Vascular permeability
- Exudate
Wound Healing Phases and Complications
This topic covers the inflammatory, proliferative, and remodeling phases of healing and tissue repair, including complications and chronic inflammation.
- inflammatory phase
- proliferative phase
- remodeling phase
- primary intention
- secondary intention
- keloid
- hypertrophic scars
- adhesions
- ulcers
- dehiscence
- chronic inflammation
- granulomas
Inflammation and Burn Pathophysiology
Clinical models of inflammation include burns, rheumatoid arthritis, pancreatitis, gastritis, and cholecystitis.
- burn pathophysiology
- burn classification
- superficial partial-thickness burns
- deep partial-thickness burns
- full-thickness burns
- Rule of Nines
- American Burn Association burn severity grading scale
- clinical manifestations of burns
Rheumatoid Arthritis Pathophysiology and Management
This content explores rheumatoid arthritis pathophysiology including chronic inflammation of synovial membranes, synovial hyperplasia, pannus formation, and clinical manifestations.
- Chronic inflammation of synovial membranes
- Synovial hyperplasia
- Pannus formation
- Accelerated angiogenesis
- Ankylosis due to fibrosis
- Autoimmune disease triggers
- Cartilage erosion
- ESR and CRP inflammation lab tests
- IgG and ANA antibodies
- Pharmacologic and nonpharmacologic treatment
Clinical Models of Respiratory Disorders
Asthma Pathophysiology and Clinical Manifestations
Asthma involves intermittent or persistent airway obstruction due to bronchial hyperresponsiveness, chronic inflammation, bronchoconstriction, and excess mucous production.
- Asthma pathophysiology
- Bronchial hyperresponsiveness
- Chronic inflammation
- Bronchoconstriction
- Excess mucous production
- Wheezing
- Tachypnea
- Coughing
- Chest tightness
- Excessive sputum production
- Anxiety
- Pulmonary function tests
- Arterial blood gases
- Pulse oximetry
- Chest x-ray
- Spirometry
Pathophysiology and Treatment of Respiratory Disorders
This content covers the pathophysiology, clinical manifestations, diagnostic criteria, and treatment for asthma, emphysema, chronic bronchitis, and pneumonia.
- Asthma treatment
- Emphysema pathophysiology
- Emphysema clinical manifestations
- Emphysema diagnostic criteria
- Emphysema treatment
- Chronic bronchitis pathophysiology
- Chronic bronchitis clinical manifestations
- Chronic bronchitis diagnostic criteria
- Chronic bronchitis treatment
- Pneumonia pathophysiology
- Pneumonia clinical manifestations
- Pneumonia diagnostic criteria
Cystic Fibrosis and Pneumonia Management
Pneumonia treatment involves restoring optimal ventilation and diffusion, while cystic fibrosis pathophysiology involves an autosomal recessive disorder of electrolyte and water transport.
- Pneumonia treatment
- Cystic Fibrosis pathophysiology
- Clinical manifestations
- Diagnostic criteria
- CF treatment
- Mucous plugging
- Sweat test
- Genetic testing
- Chest physiotherapy
Pathophysiology, Diagnosis, and Management of Infections and Disorders
Viral Hepatitis and Tinea Pathophysiology
This content covers viral hepatitis pathophysiology, types, transmission, and clinical manifestations, as well as tinea diagnostic criteria and clinical manifestations.
- Viral hepatitis pathophysiology
- Hepatitis A, B, C, D, and E transmission
- Hepatitis incubation and carrier states
- Hepatitis diagnosis and antibody detection
- Hepatitis prevention and vaccination
- Tinea clinical manifestations
- Wood's light examination
Pathophysiology and Diagnosis of AIDS
The destruction of CD4 helper T lymphocytes by HIV leads to secondary immunodeficiency, opportunistic infections, and Kaposi sarcoma.
- Secondary immunodeficiency
- CD4 helper T lymphocytes
- AIDS pathophysiology
- Opportunistic infections
- Kaposi sarcoma
- HIV viral load
- Antibody detection
- Antiretroviral therapy (ART)
- Drug resistance
Pathophysiology and Management of Pancreatitis
This content details the pathophysiology, diagnostic criteria, and clinical manifestations of acute and chronic pancreatitis.
- acute pancreatitis
- chronic pancreatitis
- autodigestion
- acinar cells
- zymogen cells
- amylase
- lipase
- gallstones
- steatorrhea
- diagnostic criteria
- treatment options
Peptic Ulcer Disease and Gallbladder Disorders
Injury to the mucosa of the esophagus, stomach, or duodenum can cause peptic ulcer disease, while cholecystitis and cholelithiasis involve inflammation and gallstones within the gallbladder.
- Peptic ulcer disease
- Gastric mucosal injury
- NSAIDs and prostaglandin inhibition
- Helicobacter pylori
- Clinical manifestations of gastric and duodenal ulcers
- Hemorrhage, obstruction, and perforation
- Cholecystitis
- Cholelithiasis
- Cholesterol gallstones
N221 Midterm Exam Content Blueprint
This blueprint outlines the pathophysiology, clinical manifestations, diagnosis, and treatment topics for the N221 midterm, including inflammation, immune processes, infection, and ventilation.
- levels of prevention
- proliferation and differentiation
- sign, symptom, local, systemic
- lines of defense against pathogens
- inflammatory process
- pathophysiology of burns, rheumatoid arthritis, acute pancreatitis, chronic pancreatitis, peptic ulcer disease, cholecystitis and cholelithiasis
- innate and adaptive immunity
- active and passive immunity
- cellular components of adaptive immune process
- T lymphocytes and cell-mediated immunity
- humoral immunity
- hypersensitivity reactions, autoimmunity and alloimmunity
- anaphylaxis, Rh isoimmunization and HIV/AIDS
- microbes and pathogens
- antibiotic resistance, bacteremia, sepsis, septic shock
- hepatitis A, B, C, D & E
- ventilation and altered diffusion
- hypercapnia, hypoxia, hypoxemia
Acute Respiratory Distress Syndrome Overview
Acute Respiratory Distress Syndrome Pathophysiology
Acute Respiratory Distress Syndrome involves severe acute inflammation and pulmonary edema progressing from lung injury to respiratory distress.
- Acute Respiratory Distress Syndrome (ARDS)
- Pathophysiology
- Clinical manifestations
- Diagnostic criteria
- Treatment
- Multisystem organ failure
- Tachypnea
- Retractions
- Crackles
- Arterial blood gases
- Blood cultures
- Chest radiograph
- Mechanical ventilation
Pathogen Mechanisms, Neoplasms, and Computer Concepts
Pathogen Relationships and Infection Mechanisms
Microbes become pathogens through various relationships with a host, including symbiosis, mutualism, commensalism, pathogenicity, and opportunism.
- Symbiosis
- Mutualism
- Commensalism
- Pathogenicity
- Opportunism
- Virulence
- Infectivity
- Toxigenicity
- Antigenicity
- Antigenic variability
- Coinfection
- Superinfection
- Gram-positive bacteria
- Gram-negative bacteria
- Aerobic and anaerobic organisms
- Viruses
- Fungi
- Resident flora
- Chain of infection
- Reservoir
Pathogen Relationships and Infection Mechanisms
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Purpose and Concepts of Using Computers
The purpose of using a computer is to improve the accuracy of data in computer science through key concepts such as cameras and video cameras.
- computer science
- accuracy of data
- cameras
- video cameras
Altered Cellular Proliferation and Differentiation
This content discusses cellular proliferation, differentiation, and the development of neoplasms through carcinogenesis and genetic mutations.
- Cellular proliferation
- Cellular differentiation
- Mitosis
- Meiosis
- Neoplasms
- Carcinogenesis
- Genetic mutations
- Tumor suppressor genes
- Oncogenes
- Apoptosis
- Inherited and acquired mutations
- Initiation, promotion, and progression theory
Neoplasms, Benign Tumors, and Malignant Tumors
A study of neoplasm nomenclature and the characteristics distinguishing benign tumors from malignant tumors, carcinomas, and sarcomas.
- Neoplasms
- Benign tumor characteristics
- Malignant tumor characteristics
- Anaplasia
- Angiogenesis
- Metastasis
- Carcinomas
- Sarcomas
- Tumor nomenclature
Neoplasms, Lung Cancer, and Leukemia Pathophysiology
This content covers cancer spread mechanisms, TNM staging, clinical manifestations, diagnostic tests, and treatment options for lung cancer and leukemia.
- Local spread
- Direct extension
- Seeding
- Metastasis
- Tropism
- TNM classification system
- Carcinoma in situ
- Lymphadenopathy
- Cachexia
- Biopsy and cytology
- Chemotherapy
- Immunotherapy
- Palliative care
- Adenocarcinoma
- Squamous cell carcinoma
- Small cell carcinoma
- Hemoptysis
- Acute lymphocytic leukemia
- Acute myeloid leukemia
- Chronic lymphocytic leukemia
Main Components of a Computer
The main components of a computer include cables and laptops used for a variety of purposes.
- Cables
- Laptops
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