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Because nutrient agar pH is low and it has less property to antibiotic diffusion that;why we use MHA for antibiotic suseptibility testing on ph variation antibiotic does not properly work

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Q: Why not nutrient agar for antibiotic sensitivity test?
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What is Antibiotic Sensitivity Test?

Answer1.It is a skin test in which a drop of an specific antibiotic is placed under your skinfor checking if you have any allergic reaction to it.2. Antibiotic sensitivity test or Antimicrobial sensitivity test is a laboratory test done inmicrobiology labs to find out the correct antibiotic to use in the therapy of aparticular disease producing bacteria.


Why have zone inhibition?

It is the area on an agar plate where growth of a control organism is prevented by an antibiotic usually placed on the agar surface. If the test organism is susceptable to the antibiotic, it will not grow where the antibioitic is.


What is the differences between zone of inhibition and zone of exhibition?

Zone of inhibition :-It is the area on an agar plate where growth of a control organism is prevented by an antibiotic usually placed on the agar surface. If the test organism is susceptable to the antibiotic, it will not grow where the antibioitic is. Zone of exhibition:-


What method is used to test the effectiveness of 2 different antibiotics?

you can use antibiotic sensitivity discs. We use that in our microbio lab.


What is an A disk in microbiology?

You'd have to be more specific in your question. However, disks are often laden with antibiotics to see if a bacteria is resistant or susceptible to that antibiotic. The disk is placed on a nutrient agar and then bacteria is spread onto that disk. If the bacteria is susceptible to that antiobiotic, it will grow on the nutrient plate, but not around the disk containing the antibiotic. The larger the clear area around the disk, the more susceptible the bacteria is to that antibiotic. If it is resistant to that antiobiotic, it will grow on the plate and adjacent to the antibiotic laden disk indicating that antibiotic is not effective towards that particular bacterial strain. In one such test the A disk had bactracin. However, I am not comfortable saying that all A disks have bactracin. How the disk is labeled may differ.

Related questions

What is the difference between Kirby-Bauer and mueller-hinton?

Kirby-Bauer is the diffusion method you would use to test antibiotic sensitivity. The Mueller-Hinton is the agar plate in which you would do the method on. This is where the antibiotic discs would be places to test the sensitivity.


What is another term for sensitivity test?

A sensitivity test, also called antibiotic susceptibility test


What is Antibiotic Sensitivity Test?

Answer1.It is a skin test in which a drop of an specific antibiotic is placed under your skinfor checking if you have any allergic reaction to it.2. Antibiotic sensitivity test or Antimicrobial sensitivity test is a laboratory test done inmicrobiology labs to find out the correct antibiotic to use in the therapy of aparticular disease producing bacteria.


Why have zone inhibition?

It is the area on an agar plate where growth of a control organism is prevented by an antibiotic usually placed on the agar surface. If the test organism is susceptable to the antibiotic, it will not grow where the antibioitic is.


How do you find antibiotic assay?

For determining the type of causal agent of infectious diseases and for checking their sensitivity to antibiotics and chemotherapeutic agents in vitro by means of the inhibition zone determination method. The antibiogram allows rational and selective chemotherapy. The test discs can be coated with chemotherapeutic agents, placed on the innoculated nutrient agar and incubated. The size of the inhibition zone is a measure for the effectiveness of the substances.


What role does antibiotic culture and sensitivity play on prescription?

For a frank case of infection prescription of an antibiotic is made from the doctor's clinical experience. Smear, culture, antibiotic sensitivity test report takes time to arrive. After seeing the report prescription is made for the antibiotic to which the patient's microorganisms are susceptible.


What is the differences between zone of inhibition and zone of exhibition?

Zone of inhibition :-It is the area on an agar plate where growth of a control organism is prevented by an antibiotic usually placed on the agar surface. If the test organism is susceptable to the antibiotic, it will not grow where the antibioitic is. Zone of exhibition:-


What method is used to test the effectiveness of 2 different antibiotics?

you can use antibiotic sensitivity discs. We use that in our microbio lab.


What is an A disk in microbiology?

You'd have to be more specific in your question. However, disks are often laden with antibiotics to see if a bacteria is resistant or susceptible to that antibiotic. The disk is placed on a nutrient agar and then bacteria is spread onto that disk. If the bacteria is susceptible to that antiobiotic, it will grow on the nutrient plate, but not around the disk containing the antibiotic. The larger the clear area around the disk, the more susceptible the bacteria is to that antibiotic. If it is resistant to that antiobiotic, it will grow on the plate and adjacent to the antibiotic laden disk indicating that antibiotic is not effective towards that particular bacterial strain. In one such test the A disk had bactracin. However, I am not comfortable saying that all A disks have bactracin. How the disk is labeled may differ.


What is the purpose of culture and sensitivity testing?

its a test which helps find what organism (usually bacteria) is causing an illness. Its also a test that helps find what antibiotic is best to treat the illness


Will metronidazole test?

What test is metrondazole test? Which contains have metronidazole test? What is mycoplasma agar A7? Which contains have mycoplasma agar A7?


Why mueller Hinton agar used instead of TSA?

Both this media share some characeristics.MH it is a vuniversal media used routinlly in bacteriological labs to test antibiotic resistence.