Abstract :
Antibiotics are natural and synthetic compounds that have the effect of
suppressing or stopping biochemical processes in the organism, especially in the
process of infection by microbes. National STIKES Bacteriology Laboratory there
are 8 species of gram-negative bacterial culture samples namely, Serratia
marcescens, Salmonella typhosae, Klebsiella oxytoca, Proteus mirabilis,
Escherichia coli, Klebsiella pneumoniae, Providencia rettgeri, and Pseudomonas
aeruginosa. Ceftazidime-type antibiotics in the production of the enzyme beta
lactamase is the main cause of reistension to antibiotics of the beta-lactam group.
The purpose of this study was to determine the level of sensivity of Ceftazidime
antibiotics to the growth of 8 Gram Negative Bacterial cultures in the National
STIKES Laboratory.
This research uses descriptive design. This research was conducted at the
National STIKES Bacteriology Laboratory and the research was conducted in
January-May 2021. The sample of this study was 8 gram-negative bacteria using
the antibiotic ceftazidime. The sampling technique used is Proposive Sample.
The results of this study showed that the bacteria Serratia marcescens,
Salmonella typhosae, Klebsiella oxytoca, Proteus mirabilis, Escherichia coli,
Providencia rettgeri, and Pseudomonas aeruginosa, sensitive to Ceftazidime
antibiotics with successive results of 28 mm, 30 mm, 25 mm, 31 mm, 44 mm, 25
mm, 28 mm, while Klebsiella pneumonaie bacteria are resistant to Ceftazidime
antibiotics due to the slave zone formed by 15 mm.
Klebsiella pneumoniae bacteria are resistant to antibiotic Ceftazidme 30
?g while salmonella typhosae, Serratia marcescen, Klebsiella oxytoca, Proteus
mirabilis, Providencia rettgeri, Escherichia coli, and Pseudomonas aeuroginosa
are still sensitive to Ceftazidime 30 ?g antibiotics.