Blood can be the most common type of clinical samples when it comes to bacteriological tests, diagnosis, culturing..etc from a clinical point of view, why is that?
Thank you.
Hello Twana Omer
Blood is the common clinical sample for bacteriological testing to check whether one has any kind of infection that is in the bloodstream and can affect the entire body. This is called systemic infection. A blood culture is usually done which checks for bacteria or yeast that might be causing the infection.
A blood culture test identifies the specific germ causing an infection and enables further testing to determine what type of treatment may be most effective.
If germs are found in the culture, further analysis is done to identify them. This may involve looking at the germs under a microscope while applying chemical dyes, such as a Gram stain, that help identify bacteria. Other laboratory methods, including molecular tests using a polymerase chain reaction (PCR) technique, may be able to identify certain types of germs.
Blood cultures are frequently used for drug susceptibility testing. In drug susceptibility testing, one or more antibiotics are added to portions of the culture to see how well they kill the germs. This type of testing can help doctors choose the most appropriate treatment for an infection.
Using blood as a clinical sample will help in assessing infection severity, treatment planning and monitoring.
Besides blood, other types of samples that are used but may not be so common are stool, urine, mucus or spinal fluid.
Best.
If u take statistics probably urine will surpass blood in numbers. Blood is used to detect bacteremia and septicaemia an important clinical entity Needing early detection
Blood is the most common clinical sample when it comes to bacteriology because in the case of septicemic disease can used for culturing and isolation of causative agent also serum can be separated from blood can be used for rapid diagnosis which give suggestive diagnosis .....etc
Gram-positive bacteria normally found on skin, such as Staphylococcus epidermidis or Staphylococcus aureus, are the most common bacterial contaminants of blood products. This type of contamination is thought to occur when the bacteria on a donor's skin is passed into the collected blood through the collection needle.
Clinically blood is used to assess the amount of severity of infection and detection of markers and cultures to isolate any bacterial growth if present in the blood at the time specimen collection. Regarding bacteriology isolated specimen like throat swabs ,bronchial washings ,urine etc has more weightage
Blood collection is Invasive. Getting urine samples, skin/wound samples, etc are examples of NON invasive sampling
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