Table 1.
Comparison of GBS prevention strategies on indications for intrapartum antibiotic prophylaxis.
| Screening Based Approach | Risk Based Approach | ||
|---|---|---|---|
|
| |||
| Care | Factors Considered | Intrapartum Antibiotic Prophylaxis Indicated | |
| Antepartum | Previously GBS affected infant | Yes | Yes |
| GBS Bacteriuria | Yes | Yes | |
| GBS positive in prior pregnancy | No | Possiblya | |
| GBS Culture obtained at 36 weeks gestation | Yes | Not applicable | |
|
| |||
| Intrapartum | GBS culture result is positive | Yes | Not applicable |
| Premature labor <37 weeks | Yesb | Yes | |
| Prolonged Rupture of Membranes | No | Yes | |
| Intrapartum fever 3100.4 | No | Yes | |
Notes:
a
If GBS status is unknown in current pregnancy, history of GBS colonization in prior pregnancy may serve as a rationale for IAP.
b
Unless a negative 36-week GBS test result is available.