Micro

Question 1

Meningoencephalitis, vesicular lesions

Answer 1

Herpes simplex virus-2

Question 2

I ♥️ Rubi earrings

Answer 2

Rubella

Cataract
Deafness
Heart disease (PDA)
Blueberry muffin rash

Question 3

CMV neonatal manifestations

Answer 3

Hearing loss
Seizures 
Petechial rash
Blueberry muffin rash 
PERIVENTRICULAR CALCIFICATIONS

Question 4

Toxoplasma gondii

Triad

Answer 4

Chorioretinitis
Hydrocephalus
Intracranial calcifications
+/- blueberry muffin rash

Question 5

Nitrite test

diagnostic ?

Answer 5

UTI caused by enterobacteriaceae

Question 6

Reiter syndrome

Triad

Answer 6

Arthritis
Urethritis
Conjunctivitis

Question 7

Reiter syndrome

Answer 7

Autoimmune reaction to a previous infection w/ one of th following org 👉shiguell, salmonella, yersinia, campylobacter, chlamydia

Question 8

Chlamydia trachomatis

Unable to synthesize ?

Answer 8

ATP

Question 9

Chlamydia

Elementary body ^ reticulate body functions ?

Answer 9

Elementary body 👉 enters cell

Reticulate body 👉 replicates in cell by fission

Question 10

Owl’s eye inclusion

Answer 10

CMV

Basophilic intranuclear inclusion body

Question 11

PYR + (2)

Answer 11

S pyogenes

Enterococci

Question 12

C botulinum

4D’s

Answer 12

Diplopia
Dysarthria
Dysphagia
Dyspnea

Question 13

Nocardia (5)

GRAM +

Answer 13

Aerobe 
Acid fast
Soil 
Cause pulmonary inf, cutaneous inf 
TMP-SMX

Question 14

Actinomyces (5)

GRAM +

Answer 14

Anaerobe
Not acid fast 
Oral, reprod, GI flora 
Facial abscesses, sulfur granules
Penicillin

Question 15

TB

Inhibit phagolysosomal fusion ?

Answer 15

Sulfatides

Question 16

Tuberculoid form
TH1
Treatment ? (2)

Answer 16

Dapsone

Rifampin

Question 17

Lepromatous form
TH2
Treatment ? (3)

Answer 17

Dapsone
Rifampin
Clofazimine

Question 18

EMB agar

Answer 18

Lactose fermenters grows as black/purple colonies

Question 19

MacConkey agar

Pink colonies

Answer 19

Ferment lactose

Klebsiella
E coli
Enterobacter
Serratia

Question 20

Bordetella pertussis

3 stages:

Answer 20

Catarrhal 🤒 coryza, fever
Paroxysmal 😥 whooping cough
Convalescent 😩

Question 21

HUS
Causes ? (2)
Triad ?

Answer 21

EHEC O157:H7
Shiga- like toxin

Anemia, thrombocytopenia, ARF

Question 22

H pylori treatment

Answer 22

Amoxi (metronidazole if penic allergy)
Clarithromycin
PPI

Question 23

Leptospirosis

Symptoms ? (5)

Answer 23

Flu like
Myalgias (calves)
Jaundice 
Photophobia 
Conjunctival suffusion (erythema w/o exudate)

Question 24

Lyme
DOC ?
Treatment in pregnant/ children ?

Answer 24

DOC: DOXYCYCLINE

pregnant: Amoxi, Cefuroxime

Question 25

Ixodes deer tick | Transmission ? (3)

Answer 25

Borrelia burgdorferi Anaplasma Babesia microti

Question 26

Secondary syphilis | Labs

Answer 26

VDRL/RPR (nonspecific) | FTA-ABS (specific)

Question 27

Neurosifilis | Labs ?

Answer 27

VDRL FTA-ABS PCR

Question 28

VDRL false ➕ ? (4)

Answer 28

Viral infection Drugs Rheumatic fever Lupus and leprosy

Question 29

Mulberry like inclusions

Answer 29

Monocytes = Ehrlichiosis

Question 30

Morulae in cytoplasm

Answer 30

Granulocytes = anaplasmosis

Question 31

Culture ➖ endocarditis

Answer 31

Coxiella burnetti

Question 32

Transient arthralgia would be expected in an adult w/?

Answer 32

B19 virus | Rubella

Question 33

Most important pathogenic attribute of pseudomonas aeruginosa in cystic fibrosis ?

Answer 33

Capsule: makes phagocytosis impossible

Question 34

Generalized transduction

Answer 34

Error of lytic virus life cycle, any chromosomal DNA can be transferred

Question 35

Specialized transduction

Answer 35

Error of temperate virus life cycle, genes near the virus insertion site may be transferred

Question 36

Polyarticular arthritis in sexually active patients

Answer 36

Neisseria gonorrhoeae

Question 37

N. Gonorrhoeae 🔹️Localized arthritis 🔹️Disseminated gonococcal dermatitis - arthritis sx triad ?

Answer 37

Dermatitis Tenosynovitis Polyarthritis

Question 38

Nonimmunogenic capsules (2)

Answer 38

S pyogenes ➡️ hyaluronic acid | N meningitidis B ➡️ sialic acid

Question 39

Ferment mannitol Grows on mannitol salt agar PYR ➖

Answer 39

S aureus

Question 40

Boxcar shaped GRAM ➕ rod | Treatment ?

Answer 40

B anthracis | Cipro or doxycycline

Question 41

Fever, chills, fatigue Outdoor hiking trip Small rings in RBC

Answer 41

Babesia microti

Question 42

Dermacentor andersoni tick (3)

Answer 42

Colorado tick fever RMSF Francisella tularensis

Question 43

Specialized transduction Bacterial toxic factors acquired during lysogeny COBEDS

Answer 43

``` Cholera toxin O ag of salmonella Botulinum exotoxin Erythrogenic exotoxins of S pyogenes Diphtheria toxin Shiga toxin ```

Question 44

Mississippi-Ohio-Missouri river valleys w/ calcifying lung lesions ? (2)

Answer 44

Histoplasma | Blastomyces

Question 45

HBV Window period serologic markers ? (2)

Answer 45

HBcAb | HBeAb

Question 46

Postinfluenza bacterial pneumonia w/ cavitary lesions ^ salmon colored sputum

Answer 46

S aureus

Question 47

Postinfluenza bacterial pneumonia w/ rusty sputum ?

Answer 47

S pneumoniae

Question 48

RMSF pathogenesis ?

Answer 48

Intracellular infection of endothelial cells

Question 49

Maternal CMV infection symptoms ?

Answer 49

Asymptomatic | Flulike symptoms

Question 50

Maternal toxoplasma gondii infection | Symptoms?

Answer 50

Asymptomatic | Lymphadenopathy

Question 51

Maternal rubella infection | Symptoms ?

Answer 51

Rash Lymphadenopathy Polyarthritis Polyarthralgia

Question 52

Property that provides TB with resistance to GRAM stain reagents ?

Answer 52

Mycolic acid

Question 53

Members of the enterobacteriaceae | Nitrite- positive

Answer 53

E coli K pneumoniae Proteus mirabilis

Question 54

Which virulence factor is responsible for the skin rash in scarlet fever ?

Answer 54

Pyrogenic exotoxin

Question 55

Yersinia enterocolitica | Transmission ?

Answer 55

Pork | Milk

Question 56

Which mechanism does S aureus use to protect itself from phagocytosis ?

Answer 56

Inhibition of opsonization

Question 57

Parvovirus B19 receptor ?

Answer 57

P antigen on RBC

Question 58

Genetic shift

Answer 58

Causes pandemics | Reassortment of viral genome segments

Question 59

Superinfection | Worse prognosis

Answer 59

1. HBV and then HDV

Question 60

Lyme disease in a kid < 8 yrs | Treatment ?

Answer 60

AMOXICILLIN