Tick Borne

Question 1

Organism behind Lyme disease?

Answer 1

Borrelia burgdorferi

Question 2

Vector for lyme disease>

Answer 2

Deer tick

Question 3

Organism behind RMSF?

Answer 3

Rickettsia rickettsii

Question 4

Vector for RMSF?

Answer 4

Dog Tick

Question 5

Organism behind ehrlichiosis?

Answer 5

Ehrlichia chafeensis

Question 6

Vector for Ehrlichiosis?

Answer 6

Lone star tick

Question 7

Stage 1 of Lyme disease?

Answer 7

Localized rash 3-32 days

Question 8

Stage 2 of Lyme disease?

Answer 8

Disseminated, cranial neuritis, skin lesions, meningitis

Question 9

Stage 3 Lyme disease?

Answer 9

Knee joint arthritis, encephalopathy, polyneuropathy, acrodermatitis

Question 10

Causes of CN 7 palsy?

Answer 10

Idiopathic (Bell’s Palsy), Herpes simplex virus (no rash), Herpes Zoster (vesicles in external auditory canal), and Lyme disease

Question 11

What will you see in Chronic Lyme Disease?

Answer 11

Pain syndrome, chronic fatigue, and neurocognitive symptoms

Question 12

Treatment of Lyme Disease?

Answer 12

Doxycycline

Question 13

How to you test for LD?

Answer 13

IgM and IgG serologic testing

Question 14

What vaccines are there for LD?

Answer 14

None for humans, canine vaccine is available

Question 15

What in the body does RMSF ticks go for?

Answer 15

Vascular endothelial cells

Question 16

Pathophysiology of RMSF?

Answer 16

Vasculitis, Hypoatremia, and thrombocytopenia

Question 17

Classic triad of RMSF?

Answer 17

Fever, rash, and history of tick exposure

Question 18

How does the rash progress?

Answer 18

Starts as merciless, progresses to vasculitic rash involving palms and soles with petechiae

Question 19

What lab tests are done to diagnose RMSF?

Answer 19

Thrombocytopenia (low platelets)

Hypoatremia (low sodium)

Question 20

What tests can you do to test for RMSF?

Answer 20

Skin biopsy of lesion and serologic testing of IgM and IgG

Question 21

How do you treat RMSF?

Answer 21

Doxy except in pregnant women then use chloramphenicol

Question 22

What makes adult female of lone star tick easy to distinguish?

Answer 22

Big white spot

Question 23

Incubation period of Ehrlichiosis?

Answer 23

8 days

Question 24

Symptoms of Ehrlichiosis?

Answer 24

Fever, headache, myalgia

Question 25

What lab findings will you see in Ehrlichiosis?

Answer 25

Leukopenia, thrombocytopenia, and elevated transaminases

Question 26

How do you treat Ehrlichiosis?

Answer 26

Doxy

Question 27

What causes Malaria?

Answer 27

Plasmodium species

Question 28

What vector causes Malaria?

Answer 28

Anopheles mosquito

Question 29

Which Plasmodium cause the most severe disease?

Answer 29

P. Falciparum

Question 30

What do Plasmodium sporozoites target?

Answer 30

Hepatocytes

Question 31

What causes hemolytic anemia in Malaria?

Answer 31

Lysing of RBC and release of merozoities to infect more

Question 32

Which strains can produce dormant hypnozoities?

Answer 32

Vivax and ovale

Question 33

What signs suggest Falciparum?

Answer 33

Seizures

Question 34

What signs suggest vivid or ovale?

Answer 34

Paroxysmal chills, fever, rigors

Question 35

What should turn your diagnosis away from Malaria?

Answer 35

Rash

Question 36

What do thin and thick blood smears allow for?

Answer 36

Evaluation of ring forms and estimation of parasite load

Question 37

What does thick blood smear do?

Answer 37

Concentrates parasites and increases diagnostic sensitivity

Question 38

How do you treat non-falciparum malaria?

Answer 38

Chloroquine

Question 39

How do you treat Falciparum?

Answer 39

Chloroquine if sensitive, Arteminsin preferred if Chloro is questioned

Question 40

Why don’t you use Mefloquine for prophylaxis

Answer 40

CNS side effects