Table 1: The presence of isolated colonies in the operating theatre.

Variable Frequency (%)
Gram staining -
Gram-positive bacteria -
Yes 172 (95.6%)
No 8 (4.4%)
Gram-negative bacteria -
Yes 113 (62.8%)
No 67 (37.2%)
Identification test for Pseudomonas aeruginosa -
Biochemical test -
Positive 0 (0%)
Negative 180 (100%)
Oxidase test -
Positive 5 (2.8%)
Negative 175 (97.2%)
Identification test for Bacillus spp. -
Catalase test -
Positive 168 (93.3%)
Negative 12 (6.67%)
Oxidase test -
Positive 168 (93.3%)
Negative 12 (6.67%)
Albert’s Stain -
Positive 168 (93.3%)
Negative 12 (6.67%)
Identification test for Acinetobacter baumannii -
Biochemical test -
Positive 0 (0%)
Negative 180 (100%)
Oxidase test -
Positive 3 (1.7%)
Negative 177 (98.3%)
Identification test for Micrococcus spp. -
Catalase test -
Positive 153 (85.0%)
Negative 27 (15.0%)
Oxidase test -
Positive 153 (85.0%)
Negative 27 (15.0%)
Identification test for Staphylococcus spp. -
Catalase test -
Positive 180 (0%)
Negative 0 (0%)
Oxidase test -
Positive 180 (0%)
Negative 0 (0%)
Coagulase test -
Positive 0 (0%)
Negative 180 (100)