Exam 2 Inf Of Blood

Question 1

Endocarditis

Answer 1

From dz, trauma, inf

Infectious= Staph, Strep

Fungal= candida

Splinter hemorrhages-small bleeds under nails

Joneway lesions- red painless skin spots palms/soles

Osler nodes- red PAINFUL nodes fingers and toes.

Question 2

Yersinia pestis (Plague)

Answer 2

Gram negative, rod, coccobacillus, facultative anaerobe

Lymph->Lung->Blood

Bubo=Plague

Vector transmitted= Fleas

Dx fluid from bubo sputum

Question 3

Francisella Tularensis

Tularemia

Answer 3

Requires Cysteine

Wild animals -> Humans
Ingestion of meat, water, infected animals, (vectors= deer fly, tick)

Negative coccobacillus - aerobe

BSL3

** 1 of most infectious bacteria
DX- serology, antibodies, pleural fluid, skin bx

Tularemia - ulceroglandular, pneumonic, oculoglandular

Question 4

Borrella Burgdorferi 
(LYMES DZ)

Answer 4

Gram negative , SPIROCHETTE

Ticks, mice, deer->humans (accidentally)

Dx: fevers arthritis, rash, facial paralysis

Question 5

Rickettsia rickettsia

ROCKY MOUNTAIN SPOTTED FEVER

Answer 5

EAST COAST CAROLINas

Gram negative coccobacillus — GIEMSA STAIN

Vector TICKS

LPS- obligate intracellular parasite

Deadly in 8 days

DX- blood culture, rash flat on stomach NO ITCH

Question 6

Dengue FEVER

Answer 6

Viral hemorrhagic fever

Tropic/subtropic

MOSQUITO= AEDES AEGYPTI
AEDES ALBOPICTUS

Dx: Virus I’d serology, molecular methods, autopsy

Rash, ITCHY, NOT X ON face, Bleeding severe pain behind eyes.

Question 7

Endocarditis

Answer 7

Strep VIridans

Gram +

Catalase -

Blood agar