Systems 3

Question 1

Child presents with a fine truncal rash that started at the head and moved downward. Postauricular lymphadenopathy.

Answer 1

Rubella

Question 2

Child with downward moving rash. Preceded by cough, coryza, conjunctivitis.

Answer 2

Measles

Question 3

Child presents with vesicular rash on palms and soles, as well as ulcers in oral mucosa.

Answer 3

Hand-foot-mouth disease (Coxsackie virus)

Question 4

What 2 toxins are produced by the causative agent of pseudomembranous colitis?

Answer 4

C. dificile produces an enterotoxin and a cytotoxin. The former attracts neutrophils and causes water secretion into the lumen. The latter destabilizes cytoskeletons, causing cell death.

Question 5

What is the main bacterial mediator of inflammation in meningococcal infection?

Answer 5

LOS (Lipooligosaccharide)

Question 6

Bacterial cause of endocarditis associated with colon cancer in pts w/ no prior valvular abnormalities.

Answer 6

Strep. bovis

Question 7

Cause of pneumonia outbreaks that grows on complex media - charcoal yeast agar with cysteine. Stains with silver.

Answer 7

Legionella pneumophila

Question 8

Painless chancre on genitals

Answer 8

Primary Syphilis

Question 9

fever, lymphadenopathy, skin rashes, condylomata lata

Answer 9

Secondary Syphilis

Question 10

painful genital ulcer with inguinal adenopathy. disease? pathogen?

Answer 10

Chancroid. Haemophilus ducreyi.

Question 11

Pharyngitis w/ grayish exudate and pain in an unimmunized child.

Answer 11

Corynebacterium diphtheriae

Question 12

Child w/ fever and dysphagia, drooling, and difficulty breathing. cherry red epiglottis

Answer 12

H. influenzae type B

Question 13

bilateral Bell’s palsy

Answer 13

Lyme disease