Category: Biochemical Tests

Biochemical tests are the tests that are performed on different bacteria for their identification based on their biochemical activities towards different biochemical compounds.

  • Biochemical tests are one of the traditional methods for the identification of microorganisms, generally performed with phenotypic identification.
  • For many years, these methods were widely used and continue to be used today, especially in some laboratory routines where a particular type of microorganism must be quickly identified.
  • The ability of microorganisms to utilize certain biomolecules, resulting in useful organic compounds on their own, forms the basis of various biochemical tests.
  • Biochemical tests are of different types, where the identification or distinction between different microorganisms is carried out on various bases.
  • One of the traditional methods commonly used is a simple visual detection of the growth of the organism in the presence of essential nutrients due to increased turbidity in the liquid medium.
  • In other tests, however, the results are based on the color change of the medium as a result of the change in pH of the medium.
  • Microorganisms can be classified into different groups based on their reaction to such tests. Some tests even allow the distinction of microorganisms at the species level.
  • Biochemical tests are therefore essential as they are inexpensive and relatively simple to perform.
  • The physiology of bacteria and other microorganisms differ from each other, which allows the differentiation of these microorganisms.
  • However, biochemical tests have some drawbacks. Despite being inexpensive and allowing both quantitative and qualitative information on the diversity of microorganisms present in a sample, these methods are laborious and time-consuming and results are only seen after several days.
  • In some cases, false positives are obtained, especially when considering similar microbial species.

 

APC Resistance

Activated Protein C Resistance

Activated protein C resistance (APCR) is hypercoagulability (an increased tendency for blood to clot) characterized by a lack of response to activated protein C (APC), which normally helps prevent blood from clotting excessively .

APS

Activated Protein C Resistance

Activated protein C resistance (APCR) is hypercoagulability (an increased tendency for blood to clot) characterized by a lack of response to activated protein C (APC), which normally helps prevent blood from clotting excessively .

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