Infectious Diseases 2

Question 1

What infection should be suspected in a middle-aged smoker with pneumonia associated with diarrhea, abdominal pain, headaches, hyponatremia, and elevated liver enzymes?

Answer 1

Legionella

Question 2

What is the appropriate treatment for legionellosis?

Answer 2

Azithromycin and a β-lactam (e.g. Cefuroxime)

Question 3

What is the appropriate treatment for Chlamydophila psittaci? Who is at risk for this infection?

Answer 3

Doxycycline; pet store workers and zoo keepers.

Question 4

Bronchiectasis, corticosteroid therapy, recent administration of Abx, and malnutrition are risk factors for _______ pneumonia.

Answer 4

Pseudomonas

Question 5

The appropriate tx for Pseudomonal pneumonia is ______.

Answer 5

Piperacillin-tazobactam + ciprofloxacin

Question 6

What is the protocol for antibiotic prophylaxis of pts w/ moderate to high risk for cardiac complications of dental procedures?

Answer 6

Oral amoxicillin, 2g, 1 hr before procedure or IV or IM ampicillin, 2 g, 30 mins before procedure.

Question 7

What is the protocol for Abx prophylaxis of moderate risk pts undergoing invasive procedures, such as GI or GU surgery?

Answer 7

IV ampicillin, 2g, 30 mins before procedure.

Question 8

What is the antibiotic prophylaxis protocol for high risk pts undergoing invasive procedures?

Answer 8

2g ampicillin IV + gentamicin, 1.5 mg/kg, 30 min before procedure.

Question 9

What fingernail finding is associated w/ cirrhosis?

Answer 9

Terry’s nails (white proximal mail beds)

Question 10

What are the 3 most common causative organisms of osteomyelitis in a sickle cell pt?

Answer 10

S. aureus, streptococci, and Salmonella spp.

Question 11

Which 2 are the imaging procedures of choice in the diagnosis of osteomyelitis?

Answer 11

MRI and CT