Microbiology

Question 1

Hookworms are treated with what and what is the MOA?

What is the story for hookworm?

Answer 1

Albendazole, inhibits microtubule polymerization by binding to tubulun

Backpacking in SA, now with n/v/d and s/s of shock

Question 2

Is pseudomonas motile or non-motile?

Answer 2

Motile!

Question 3

Is Giardia binucleate or uninucleat?

Answer 3

BINUCLEATE!!

Question 4

Syphillis vs. HPV warts, what tips off the difference?

Answer 4

HPV warts will be multiple painlrss, grey lesions on the genitals.

Question 5

What is the host for pinworms?

Answer 5

Humans!

Question 6

C. diff is aerobic or anaerobic??

Answer 6

Anaerobic (gas mask because it smells so bad)

Question 7

What’s the best way to tell the difference between E.coli and Shigella?

Answer 7

Shigella is NOT a lactose fermetner!

(no milk at the circus)

Question 8

Is adenovirus DNA or RNA?

Answer 8

DNA!

Question 9

what is elephantiasis caused by and treated with?

Answer 9

Diethylcarbamazipine

caused by W. Bancrofti

(fat leg, neets a DIET-diethyl)

Question 10

Which HPV strains are most likely to cause genital warts vs. cancer?

Answer 10

Warts: 6, 11

Cancer: 16, 18, 31, 32

Question 11

Which virus has “sandy” appearance and what are it’s features?

Answer 11

Arenavirus (Lassa Fever, similar to hanta virus)

circular, ssRNA, 2 segments

Question 12

What is the prophylaxis for b. anthracis?

Answer 12

60 days of cipro and 3 series vaccination

Question 13

If molluscum is disseminating and you are concerned for HIV, what is the first test?

Answer 13

Ag/Ab testing for HIV 1 and 2

Question 14

What type of agar is Tullarensis grown in?

Answer 14

Cysteine glucose agar

Question 15

What is the suspect for subacute infectious endocarditis after a dental procedure?

Answer 15

S. sanguinous (more common than HACEK species)

Question 16

What are the s/s of Black Widow bite?

what is the toxin?

Answer 16

N/V, NMJ symptoms (twitching), abdominal pain

alpha-latrotoxin (neurotoxin)

Question 17

What type of fly causes onchocericosis (blindness)?

Answer 17

Black fly

Question 18

Describe Pityriasis Rosea

Answer 18

Oval, scaley, looks like tinea, but in a christmas tree pattern on back

Question 19

What can cause similar sx to TB in a HIV pt with a CD4<50?

Answer 19

MAC (even the cheesy discharge around hilar LN)

Question 20

What do you treat suspected gonorrhea/chlamydia with ? (even if only presenting sx is dysuria?)

Answer 20

ceftriaxone (gon) and azithromycin or doxyclcycline (clam)

Question 21

subacute endocarditis after dental procedure can be caused by s. viridans which is catalase (-) or (+)?

Answer 21

Catalase (-)

Question 22

What is the big difference between EIEC and ETEC?

Answer 22

EIEC will be bloody (invasive)-also ferments Sorbitol

ETEC-nonbloody

Question 23

What bacteria can cause acute infective endocarditis in a pt with a heart valve?

Answer 23

S. Aureus

Question 24

Which air-conditioning bug is a facultatitve intracellular?

Answer 24

Legionella

Question 25

Riketssia Prowasaki has a rash that does what?

Answer 25

Starts central and spreads peripheral

pleomorphic gram negsative oblgate intracellular