MED- ID

Question 1

Otitis externa in old people

risks/ bug

Answer 1

This infection usually occurs in older diabetics and

is almost always caused by P. aeruginosa

Question 2

condylomata lata

Answer 2

specific for secondary syphilis

Question 3

coryza

Answer 3

catarrhal inflammation of the mucous membrane in the nose, caused especially by a cold or by hay fever

Question 4

Pneumonia cause bacteria with cholesterol “wall”

Answer 4

m pneumonia

cannot gram stain

Question 5

m pneumonia s/s

Answer 5

atypical walking pneumonia

xray worse than patient- patchy infiltrate

Question 6

m pneumonia demographic and rx

Answer 6

↑ in young adults (< 30)

no cell wall, so rx= macrolide (erythromycin)

Question 7

m pneumonia test

Answer 7

high titers of IgM cold
agglutinins.

IgM are directed to the I antigen on the erythrocyte membrane–> lysis of cells

Question 8

Erythromycin is?

Answer 8

a macrolide

Question 9

Mono cause and s/s?

Answer 9

EBV

-fever, pharyngitis, tender LAD, and reactive lymphocytosis

Question 10

Mono lymph cells?

Answer 10

a-typical lymph cells (mostly T cells)

↑ lymph–> ↑ liver/spleen size

Question 11

EBV targets?

Answer 11

CD 21 to infect B cells. EBV remains latent in b cells

Question 12

strep vs mono

Answer 12

strep= kids.

mono= teens/edults

Question 13

Mono with amoxicillin

Answer 13

if penicillin family is given in mono, it will lead to a rash

Question 14

EBV cancers

Answer 14

B cell lymphoma (both burkitt and hodgkin)

Nasopharyngeal carcinoma

oral hairy leukoplakia (in HIV) - not actually cancer tho

Question 15

EBV testing

Answer 15

A heterophile antibody test should be performed.

“mono spot”

Question 16

_________ cause most cases of subacute bacterial endocarditis.

Answer 16

Viridans streptococci

Question 17

Providencia species frequently causes?

Answer 17

UTI in the hospitalized patient

Question 18

The HIV-positive patient with a low CD4 count and visual blurring has developed ____________

Answer 18

cytomegalovirus retinitis

Gancyclovir is the drug of choice

Question 19

CMV Rx

Answer 19

Gancyclovir is the drug of choice

Question 20

Mucormycosis is a zygomycosis that originates

____________

Answer 20

in the nose and paranasal sinuses.

Sinus tenderness, bloody nasal discharge, obtundation in diabetic ketoacidosis.

Question 21

The treatment of choice for Lyme disease at this stage would be :

Answer 21

penicillin or ceftriaxone