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Description

The Centers for Disease Control and Prevention (CDC) reported an algorithm for selecting an antibiotic to use for intrapartum prophylaxis against Group B Streptococcus (GBS).


 

Patient selection: pregnant woman who is a candidate for intrapartum prophylaxis against GBS

 

Parameters:

(1) allergy to penicillin

(2) history of severe allergic reaction to a penicillin or cephalosporin (angioedema, anaphylaxis, urticaria, respiratory distress)

(3) resistance to clindamycin

(4) resistance to erythromycin or evidence of inducible resistance to clindamycin

 

Penicillin Allergy

Severe Reaction

Resistance to Clindamycin

Other Resistance

Regimen

no

NA

NA

NA

1

yes

no

NA

NA

2

yes

yes

no

no

3

yes

yes

no

yes

4

yes

yes

yes

NA

4

 

 

Regimen

Details

1

penicillin G 5 MU IV initial then 2.5 MU q4h until delivery

1 (alternative)

ampicillin, 2 g IV initial then 1 g IV q8h until delivery

2

cefazolin, 2 g IV initial then 1 g IV q 8h until delivery

3

clindamycin, 900 mg IV q8h until delivery

4

vancomycin, 1 gram IV q12h until delivery

 


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