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Table 2 The results of blood cultures within 15 h

From: A case report of Klebsiella aerogenes-caused lumbar spine infection identified by metagenome next-generation sequencing

Antibacterial agents

Break point

Results

Interpretation

The results of blood cultures: positive for Klebsiella aerogenes

 MIC method (unit: mg/mL)

  Piperacillin-Tazobactam

≤ 16 ≥128

≤ 4

Sensitivity

  Ceftazidime

≤ 4 ≥16

≤ 0.12

Sensitivity

  Cefoperazone-Sulbactam

≤ 16 ≥64

≤ 8

Sensitivity

  Cefepime

≤ 2 ≥16

≤ 0.12

Sensitivity

  Aztreonam

≤ 4 ≥16

≤ 1

Sensitivity

  Imipenem

≤ 1 ≥4

2

Intermediate

  Meropenem

≤ 1 ≥4

≤ 0.25

Sensitivity

  Amikacin

≤ 16 ≥64

≤ 2

Sensitivity

  Tobramycin

≤ 4 ≥16

≤ 1

Sensitivity

  Ciprofloxacin

≤ 0.25 ≥1

≤ 0.25

Sensitivity

  Levofloxacin

≤ 0.5 ≥2

≤ 0.12

Sensitivity

  Doxycycline

≤ 4 ≥16

1

Sensitivity

  Minocyline

≤ 4 ≥16

4

Sensitivity

  Tigecycline

≤ 2 ≥8

1

Sensitivity

  Colistin

≤ 2 ≥4

≤ 0.5

Sensitivity

  Bactrim

≤ 40 ≥80

≤ 20

Sensitivity

Results of blood cultures: no anaerobic bacterium was found

 K-B method (unit: mm)

  Cefazolin

≥ 23 ≤19

6

Resistance

  Gentamicin

≥ 15 ≤12

23

Sensitivity

  Ampicillin

≥ 17 ≤13

6

Resistance

 Ampicillin-Sulbactam

≥ 15 ≤11

6

Resistance

  Cefuroxime

≥ 18 ≤14

20

Sensitivity

  Cefuroxime axetil

≥ 23 ≤14

20

Intermediate

  Cefoxitin

≥ 18 ≤14

6

Resistance

  Meropenem

≥ 23 ≤19

25

Sensitivity

  Imipenem

≥ 23 ≤19

21

Intermediate

  Cefotaxime

≥ 23 ≤19

28

Sensitivity

  Amoxicillin-clavulanic acid

≥ 18 ≤13

6

Resistance

  Ceftazidime-avibactam

≥ 21 ≤20

25

Sensitivity

Results of smear: the gram-negative bacteria were found