Lecture 20 Flashcards Preview

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Flashcards in Lecture 20 Deck (20):
1

Cardiovascular system

blood, blood vessels, and heart. carries oxygen and nutrients to body

2

Lymphatic system

lymph, lymph nodes, lymph vessels, lymphoid organs. lots of B and T cells and macrophages. no red blood cells

3

Endocarditis

infection anf inflammation of tissues surrounding heart muscles. begins as an infection elsewhere in the body. bacteria effect pre-existing lesions of the heart.

4

Symptoms and treatment of endocarditis

symptoms: fever, heart murmur, tissue damage, death. treated with broad spectrum antibiotics, often used as preventative measure

5

Sepsis

life threatening systemic inflammatory response. caused by bacteria in blood (ex: Klebsiella pneumoniae endotoxin) can lead to sudden decrease if blood pressure. usually begins as nosocomial infection elsewhere in the body

6

Treatment and prevention of sepsis

treated with bacteriostatic antibiotics (resistance problem) prevention: diagnose and treat local infection

7

Pseudomonas infections

cause by pseudomonas aeruginosa. opportunistic pathogen. produces blue-green pigment on infected burns. grows in dead tissue/wounds. can enter into blood

8

Treatment and prevention of pseudomonas infections

resistant to a lot of antimicrobial, can be treated with high dose of intravenous antibiotics. prevention: debribe wounds, topical antibiotics. resistant to disinfectants

9

Plague

Yersinia pestis. mainly disease of rodents. transmitted to humans by flea bites. bacterium enters blood and lymph. can survive and grow in phagocytic cells.

10

Treatment and symptoms of plague

lymph nodes in groin and armpits become enlarged. swellings are called buboes (bubonic plague) untreated with cause death in 50-80% patients

11

Pneumonic plague

Yersinia pestis spread by respiratory droplets.

12

Symptoms, treatment and prevention of pneumonic plague

symptoms are pneumonia like, fatal in 3 days. treated with antibiotics, prevented with pest control

13

Epstein-Barr virus

infectious mononucleosis, transmitted by direct or indirect contact. virus targets B cells, cytotoxic T cells actively destroy B cells. disease lasts months. weakens immune system

14

Symptoms of epstein-barr virus

usually infection occurs in early childhood and is asymptomatic. in early adulthood there is fatigue, sore throat, swollen lymph nodes

15

Latent epstein-barr virus is linked to..

burkitt's lymphoma, multiple sclerosis, hodgkins disease, nasopharyngeal cancer

16

Ebola hemorrhagic fever

fruit bat is host, used as food to transmit to humans. can be transmitted to humans through direct or indirect contact w/ infected blood, highly contagious

17

Symptoms of elbow hemorrhagic fever

high fever, vomiting blood, bleeding profusely though external and internal openings. results in organ failure and death in 50% of cases

18

Malaria

caused by plasmodium species, carried by mosquitoes and tropical climates. targets red blood cells, new generation of plasmodium released from RBC. 200 mill ppl infected world wide

19

Symptoms of malaria

anemia, enlarged spleen, characteristic fever cycle temp increase every 2-3 days

20

Treatment of malaria

quinines: targets cell division in plasmodium (resistance is problem)