The antibiotic, also known as an antibiotic sensitivity test, is a test that aims to determine the sensitivity and resistance profile of antibiotic bacteria and antibodies, with the result of the antibiotic, your doctor may indicate the antibiotic but indicated to treat the patient’s infection. thus avoiding the use of other antibiotics that are not necessary and do not treat the infection, in addition to the appearance of resistances.
Normally, the antibiotic is performed after the identification of microorganisms in the large blood, or in, needs and tissues, so, depending on the identified microorganism and sensitivity profile, the doctor may indicate the most appropriate treatment.
- For the antibiotic to be performed.
- Your doctor will request the collection of biological material such as blood.
- Urine.
- Saliva.
- Sputum.
- Organ cells contaminated by microorganisms.
- These samples are sent to a microbiology laboratory for analysis and culture in a way that promotes the growth of bacteria or fungi.
Once it grows, the microorganism isolates and undergoes identification problems so that it can be used to find the bacteria or the person responsible for the infection. After isolation, the antibiogram is also performed to know the sensitivity and resistance profile of the microorganism, which can be hacked in any of the following ways:
Currently in the laboratory, the antibiotic is made by a team in which resistance and sensitivity problems are carried out, the laboratory report indicates that the antibiotics are resistant to the infectious agent and are effective to combat the microorganism and its concentration.
Urinary tract infection is one of the most common infections in women and men, and when diagnosed by doctors who require a general orin examination (EGO) and antibiotic uroculture, these tests together can identify which microorganisms cause the infection and which antibiotics to use to combat it. As the uroculture takes place and for any purpose
The result of the antibiotic can take 3 to 5 days and is obtained by analyzing the effect of antibiotics on the growth of bacteria and mice, the antibiotic that inhibits the growth of the infectious agent will be indicated to treat the infection, but in case of the microorganisms and antibiotics of the effective agent do not indicate that the bacteria are not sensitive to this antibiotic and , therefore, resistant.
It is important that the result of the antibiotic be interpreted by the doctor, as it should evaluate the values of the minimum inhibitory concentration (CMI) and the diameter of the inhibition halo, depending on the test that was performed. concentration of antibiotics capable of inhibiting bacterial growth and is subject to Clinical and Laboratory Standards Institute (CLSI) standards, which may vary depending on the antibiotic used and the microorganism identified.
In the case of diffusion antibiogram in agar, paper with certain concentrations of antibiotic is placed in the culture medium of microorganisms, incubating for approximately 18 hours, in order to observe the presence of inhibition halos, depending on the size of the diameter of the halo, it is possible to check if the bacteria are not sensitive, sensitive, intermediate or resistant to antibiotics.
The result should also be interpreted on the basis of the CLSI determination, which determines that for the Escheria coli to ampicillin sensitivity test, the inhibition halo less than 13 mm indicates that the bacteria are resistant to antibiotics and that a halo equal to the greater in 17 mm indicates that the bacteria is sensitive.
This way, taking into account the results of the antibiotic, your doctor may indicate the most effective antibiotic to fight infection.
The use of ineffective antibiotics for a microorganism slows a person’s healing, partially treats the infection and promotes the development of bacterial resistance mechanisms, making it difficult to treat the infection.
For the same reason, it is very important not to use antibiotics without your doctor’s advice and unnecessarily, as you may end up selecting more antibiotic-resistant bacteria, thus reducing drug options to fight infections.