Class 6/5

Question 1

describe impetigo and what pathogens cause it

Answer 1

maculopapular crusty lesion that is honey colored

staphylococcus and streptococcus

Question 2

what differentiates staphylococcus and streptococcus

Answer 2

catalase

staph is catalase+

Question 3

What are the most medically significant Gram + organisms

Answer 3

2 cocci: staphy and strep
4 bacilli
2spore: B anthracis, Clostridium spp
2 non spore: C diphtheria, L monocytogenes

Question 4

Which species of staph is coagulase +

Answer 4

staph aureus

Question 5

52 y/o lobar pneumonia, responding well to therapy
sudden onset fever, worsening conditions
necrotizing abscess formation in lung
best Dx?

Answer 5

staph aureus

Question 6

What is another name of streptococcus agalactiae

Answer 6

Group B strep

Question 7

multiple children with renal failure and hemolytic uremic syndrome and abdominal pain after consuming the same food
best Dx

Answer 7

E. coli

enterohemorrhagic

Question 8

What are the forms of E coli

Answer 8

enterotoxigenic
enteroinvasive
enterohemorrhagic

Question 9

what can lead to tumoremia in a hunter

Answer 9

skinning animal hides that aerosolizes

Question 10

What is a zoonotic disease

Answer 10

not vector, directly from animal

Question 11

what shape is borrelia burdorgferi

Answer 11

spirochete

Question 12

classic CSF characteristics of acute bacterial meningitidis

Answer 12

turbid with increased P
decreased glucose
increased protein
neutrophils- polymorphonuclear

Question 13

What are common pathogens of acute meningitis

Answer 13

Grp B strep
E coli
Listeria
H influenza
N meningitidis

Question 14

how do you establish lymes Dx

Answer 14

serology titers

Question 15

describe arthritis assoc with N gonorrheae

Answer 15

unilateral mono-articular

Question 16

what are the main manifestations of spirochete infetions

Answer 16

endarteritis

lymphoplasmacytic infiltrates

Question 17

partial left colectomy from recurrent diverticulitis
has fever that fails to responde to penicillin and cephalosporins
viscid diarrhea(mucous)

Answer 17

bacteroides fragilis

Question 18

what type of diarrhea with campylobacter

Answer 18

bloody

Question 19

baby that is breast feeding has low grade fever dry cough lethargic
low grade hepatitis
most likley

Answer 19

CMV

Question 20

what is another name for strep pyogenes

Answer 20

group A beta hemolytic Strep

Question 21

what causes strep throat

Answer 21

grou A beta hemolytic strep

Question 22

7 y/o with sore throat, low grade fever and CBC with slight lymphocytosis
erythematous pharynx
aerobic cultures are negative
best Dx?

Answer 22

CMV

Question 23

what viruses are responsible for common cold

Answer 23

rhinovirus

coronavirus

Question 24

what viruses commonly cause diarrhea

Answer 24

calicivirus- norovirus
rotavirus
adenovirus

Question 25

which Hepatitis viruses are RNA

Answer 25

A and C

Question 26

tattoo caused Hepatitis is most commonly what

Answer 26

Hep C

Question 27

rose spots in a Hx with Diarrhea point to what infection

Answer 27

salmonella typhi

Question 28

rotavirus causes diarrhea in what age group

Answer 28

young