WBC in stool (Fecal Leukocytes)

Leukocytes in Stool (Fecal leukocytes)

The presence of leukocytes in Stool is indicator of inflammation as a result of bacteria. Leukocytes analysis is useful for the differentiation of bacillary dysentery, demonstrating ...
Klebsilla, Enterobacter and Ecoli on EMB Agar

Klebsiella, Enterobacter and Escherichia coli on EMB Agar

Klebsiella Characteristic mucoid colonies are a consequence of the organism’s abundant polysaccharide capsule. Lactose-fermenting colonies Escherichia coli colonies Lactose-fermenting ...
Extracellular and intracellular Gram negative diplococci

Gram Negative Diplococci

Gram negative diplococci extracellular and intracellular in neutrophils. If the smear was taken from urethral discharge, it strongly suggestive of Neisseria gonorrhoeae.
Robertson’s Cooked Meat Medium

Robertson’s Cooked Meat Medium

The Medium provides a favorable environment for the growth of anaerobes since the muscle protein in the heart tissue granules is a source of amino acids and other nutrients. The muscle ...
Drumstick shape of Clostridium tetani

Terminal bulging spores of Clostridium tetani

Clostridium tetani is a Gram-positive, sporeforming, rod-shaped bacterium that is resistant to temperature modifications, moisture, and chemical disinfectants. C. tetani is strictly ...
Triple Sugar Iron Agar

Triple Sugar Iron Agar

Triple Sugar Iron medium is a differential medium that can distinguish between a number of Gram-negative enteric bacteria based on their physiological ability (or lack thereof) to: a. ...
Coagulase Test

Coagulase Test

Staphylococcus aureus is known to produce coagulase, which can clot plama into gel in tube or agglutinate cocci in slide. This test is useful in differentiating S.aureus from other ...
Catalase Test

Catalase Test

The catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using ...
Simmons citrate agar test

Citrate utilization Test

Simmons citrate agar tests the ability of organisms to utilize citrate as a carbon source. Simmons citrate agar contains sodium citrate as the sole source of carbon, ammonium dihydrogen ...
Proteus mirabilis on blood agar

Swarming growth on Blood Agar

Swarming or spreading in wave form is seen with motile organisms particularly Proteus mirabilis. Cause of swarming – The flagella of bacteria are naturally set to spin counter-clockwise ...
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