Site | Pathogens | Suggested empirical antibiotic |
---|---|---|
Urinary tract infection | Enterobacteriacae including | - Ceftriaxone for CAB or ceftazidime for HAB or ICU AB (if suspicion of P. aeruginosa) |
- Escherichia coli | ± aminoglycosides | |
Other enterobacteiraceae | NB: Consider the risk of ESBL and administer a penem in case of hish risk (CA and recent travel to high risk countries, other situations in case of previous colonization, invasive procedure use, previous antibiotic therapy especially in case of septic shock) | |
Pseudomonas aeruginosa | ||
Enterococcus sp. | ||
Staphylococcus sp. | ||
Intra-abdominal sepsis | Gram negative bacilli including | - Piperacillin-tazobactam |
- Escherichia coli (all BSIs) | - Cephalosporin active against P. aeruginosa + metronidazole | |
- other enterobacteriaceae (all BSIs) | - Carbapenem (high-risk patients) | |
- Pseudomonas aeruginosa (HA and | ± fluconazole | |
ICU BSI) | ± aminoglycoside | |
Gram positive Cocci including | ||
- Enterococcus sp. | ||
Anaerobes including Bacteroides | ||
Candida | ||
CA and HCA pneumonia | S pneumoniae (CA BSI) | - Third generation cephalosporin (macrolides in case of suspicion of intracellular bacteria will be added initially). |
S aureus (HCA BSI) | ||
E coli (HCA BSI) | - NB: In case of HCA, consider the risk of MRSA or ESBL E coli. | |
Hospital acquired pneumonia | Enterobacteriacae | - Beta-lactam active against P. aeruginosa ± aminoglycoside ± glycopeptide or linezolid if suspicion of methicillin-resistant Staphylococcus aureus |
Pseudomonas aeruginosa | ||
Staphylococcus aureus | ||
Streptococcus pneumoniae | ||
Haemophilus influenzae | ||
Ventilator-associated pneumonia (no risk factor for multi-drug resistant pathogen) | Staphylococcus aureus | - Third generation cephalosporins |
Streptococcus pneumoniae | ± aminoglycosides or fluoroquinolones | |
Haemophilus influenzae | ||
Anaerobes | ||
Catheter-related infection | Staphylococcus sp. | - Glycopeptide or linezolid + beta-lactam active against Pseudomonas aeruginosa |
Enterobacteriacae | NB: Consider the risk of candidaemia in case of previous Candida colonization, | |
Pseudomonas aeruginosa | Â | |
 | Candida sp. |  |