UCSF Medical Center Antimicrobial Susceptibility: Gram-negatives Among Inpatients 2015

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N/A-testing NOT APPLICABLE to organism. CZOL-cefazolin, CTRX-ceftriaxone, CTAZ-ceftazidime, CFPM-cefepime, GEN-gentamicin, TOB-tobramycin, T/S-trimethoprim/sulfamethoxazole, CIP-ciprofloxacin, MER-meropenem, P/T-piperacillin-tazobactam

Values are % of strains testing susceptible to listed antibiotic.  Unless indicated, results are for isolates submitted from all inpatient locations and from all culture sites.

Organism Total Isolates CZOL CTRX CTAZ CFPM GEN TOB T/S CIP P/T MER

Acinetobacter baumanii

17  N/A  53  94  88 100 100  94  100 94 100

Citrobacter freundii

24

N/A

71

71

100

92

88

75

79

79

100

Enterobacter aerogenes

28

N/A

N/A

N/A

100

100

100

100

96

89

100

Enterobacter cloacae

62

N/A

N/A

N/A

98

98

95

85

97

85

100

Escherichia coli

473

52

75

80

85

83

80

57

56

96

99

Urine isolates (inpatient only; outpatient isolates here)

363

55

78

83

88

83

82

60

59

98

99

Non-urine isolates

109

41

64

70

77

81

72

48

44

92

99

Klebsiella oxytoca

23

26

83

87

100

97

91

83

83

83

100

Klebsiella pneumoniae

164

69

76

77

87

86

80

67

77

88

98

Proteus mirabilis

67

6

89

94

94

81

87

69

73

100

100

Pseudomonas aeruginosa*

194

N/A

N/A

86

86

N/A

95

N/A

74

75

79

ICU

59

N/A

N/A

85

81

N/A

92

N/A

71

71

77

Non-ICU

85

N/A

N/A

86

90

N/A

97

N/A

76

78

81

Serratia marcescens

29

N/A

100

100

100

100

100

100

97

100

98

 

* Pseudomonas aeruginosa isolates do not include isolates from cystic fibrosis patients