Automated ( aerobic) bacterial
identification and sensitivity (mic) - urine test
Automated bacterial identification and sensitivity testing,
also known as "microbial identification and susceptibility testing,"
is a laboratory technique used to identify the type of bacteria present in a
urine sample and determine which antibiotics will be effective in treating an
infection. The process typically involves growing a culture of the bacteria
from the urine sample and then using various methods, such as mass spectrometry
or DNA sequencing, to identify the type of bacteria. Once the bacteria have
been identified, the laboratory will test the culture against a panel of
antibiotics to determine which drugs are effective in killing or inhibiting the
growth of the bacteria. This information can then be used by a healthcare
provider to select the most appropriate antibiotic therapy for the patient.
The automated bacterial identification and sensitivity
testing process begins with a urine sample being collected from the patient.
The sample is then processed in a laboratory to isolate and grow the bacteria
present in the urine. This typically involves adding the sample to a
nutrient-rich culture medium and incubating it at a specific temperature and
humidity for a certain period of time.
Once the bacteria have grown to a sufficient number, they
are then subcultured on specific media for identification and antibiotic
susceptibility. This can be done using various methods such as; Biochemical
tests, Serological tests, molecular methods, mass spectrometry, or DNA
sequencing. These methods can help to identify the genus and species of the
bacteria present in the sample.
After identifying the type of bacteria present in the urine
sample, the laboratory will then test the culture against a panel of
antibiotics to determine which drugs are effective in killing or inhibiting the
growth of the bacteria. This is done by adding a range of antibiotics to the
culture and observing how the bacteria respond. The bacteria will be considered
susceptible to an antibiotic if it is killed or inhibited by it and resistant
if it is not.
The results of automated bacterial identification and
sensitivity testing are then reported to the healthcare provider, who can use
this information to select the most appropriate antibiotic therapy for the
patient. This will help to ensure that the patient receives the most effective
treatment possible and reduce the risk of antibiotic resistance.
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