Infectious Diseases

Question 1

What 4 Abx would you choose from to treat most S. pyogenes or S. aureus infections?

Answer 1

Naf-, Ox-, Clox-, or Dicloxicillin

Question 2

What would you give for most Strep and Staph infections in pt’s that developed a rash from penicillin?

Answer 2

1st generation cephalosporin, e.g. cefazolin, cephalexin, or cefadroxyl

Question 3

What would you give for S. pyogenes or S. aureus infection if a person has had an anaphylactic reaction to penicillin in the past?

Answer 3

macrolides or clindamycin

Question 4

What 3 drugs are the main macrolides?

Answer 4

erythromycin, azithromycin, clarithromycin

Question 5

What is the coverage of clindamycin?

Answer 5

Staph, Strep., and anaerobes

Question 6

What are the 2 older drugs used for MRSA?

Answer 6

Vanco and LINEZOLID

Question 7

What prophylactic tx should be given to HIV pts who have a positive PPD but are asymptomatic?

Answer 7

Isoniazid + pyridoxine for 9 mos.

Question 8

What is considered a positive PPD for HIV pts?

Answer 8

> 5 mm induration

Question 9

What is pyridoxine?

Answer 9

Vit B6

Question 10

What tx should be started in neutropenic pts w/ temperature above 38.3? What is this condition called.

Answer 10

neutropenic fever: IV ceftazidine (3rd gen) or cefepime (4th gen)