Table 2

Organisms cultured at >104 cfu/mL

OrganismN
Methicillin-sensitive Staphylococcus aureus14
Escherichia coli8
Pseudomonas aeruginosa7
Klebsiella pneumoniae5
Haemophilus spp6
Candida spp5
Enterobacter aerogenes2
Enterobacter cloacae1
Acinetobacter spp2
Coliform2
Moraxella catarrhalis2
Upper respiratory flora*2
Streptococcus pneumoniae2
Proteus mirabilis2
Serratia marcescens1
Citrobacter koseri1
Stenotrophomonas maltophilia1
Streptococcus pyogenes1
Methicillin-resistant Staphylococcus aureus1
Peptostreptococcus spp1
Yeasts2
Streptococcus group C1
  • N, the number of patients in whom the micro-organism in question was isolated from bronchoalveolar lavage fluid at >104 cfu/mL.

  • *In both cases, normal flora growth was in addition to another organism at >104 cfu/mL.