KHP Final Exam Flashcards
By the end of the 20th century what happened to the death rate of infections diseases
Fell to about 2%
Infection
Disease or condition caused by a microorganism
What is the chain of infection
The process by which an infectious agent or pathogen passes from one organism to another
Pathogen
Infectious agent capable of causing diseasse
Vector
Animal or insect that transmits a pathogen from an infected host to a new host
Virulence
Speed and intensity in which a pathogen is likely to cause an infection
Epidemic
Widespread outbreak of a disease that affects a lot of people
Physical and Chemical Barriers
Skin
Hair
Lungs are protected by the cough reflex and cilia
Saliva
Stomach acids
Small intestines- bile and enzymes break down pathogens
Vagina is slightly acidic and doesn’t allow for the growth of abnormal bacteria
Innate immune system
Part of the immune system designed to rapidly dispose of pathogens in a nonspecific manner
Types of innate immune system
Neutrophils
Macrophages
Natural killer
Acquired immune system
Lymphocytes
T cells
B cells
Vaccine
Preparation of weakened or killed microorganisms administered to confer immunity
Controlleable Risk factors for infection
Eating a balanced diet
Exercising
Getting enough sleep
Managing stress
Receive in vaccinations
Good hygiene
Protecting skin from damage
Avoiding tobacco and environmental tobacco smoke
Uncontrollable risk factors for infection
Age
Genetics
Uncontrollable sociocultural factors
Overcrowded living environments
Poverty
Disruption of immunity
The immune system can malfunction due to:
Autoimmune disease
Allergies
Stress
Antibiotic resistance- two factors
Frequency- resistant genes arise naturally among bacteria through mutation
Inappropriate use of antibiotics in healthcare
4 leading causes of global infectious disease mortality
Pneumonia
Diarrhea
Tuberculosis
Malaria
Most common infectious disease
Tuberculosis
What is the most common infectious disease on campuses
Pertussis
Whooping cough
What are the 4 methods of transmission of HIV/AIDS
Needle injections
Blood
Sexual contact
Mother to child
What continent has the highest amount of people living with HIV
Africa
What is the most common bacterial STI
Chlamydia
What is the most common viral STI
Human papilloma virus HPV
Cardiovascular disease
Any disease involving heart or blood vessels
What is the leading cause of death in the United States
Cardiovascular disease
What is a disease process underlying many forms of CVD
Atherosclerosis
What is atherosclerosis
Hardening of the arteries
What makes up the largest percentage of deaths from CVD
Coronary Heart Disease
What is the cardiovascular system
The heart and blood vessels that circulate blood throughout the body
Pulmonary circulation
Pumping of oxygen poor blood to the lungs and oxygen rich blood back to heart by the right side of the heart