ONPG Test – ( o-nitrophenyl-β-D-galactoside)

Purpose: this test is used to demonstrate the presence or absence of the enzyme B-galactosidase using the substrate Ortho-nitrophenyl-D-galactopyranoside in order to differentiate ...

Plant origin artifact resemble hookworm egg

  This object may be mistaken for thin shelled hookworm eggs or decorticated Ascaris eggs. The irregular contour of the outer membrane and the general appearance should suggest ...

YEAST in urine sediment

 

Fasciolopsis buski egg

  Eggs of Fasciolopsis buski are broadly ellipsoidal, operculated and measure 130-150 µm long by 60-90 µm wide. The eggs are unembryonated when passed in feces. The eggs ...

Erythrocyte Sedimentation Rate (ESR)

  The erythrocyte sedimentation rate (ESR), also called a sedimentation rate or Biernacki Reaction, is the rate at which red blood cells sediment in a period of 1 hour. It is ...

Simmons Citrate Agar

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 ...

Capillaria philippinensis eggs

  Capillaria philippinensis eggs are 35 to 45 µm in length by 20-25 µm in width. They have two inconspicuous polar prominences and a striated shell. Eggs are unembryonated when ...

Monocyte on a smear

 

Large Granular Lymphocyte on a Smear

A type of white blood cell that contains granules with enzymes that can kill tumor cells or microbial cells.

Urease Test

Urease broth is a differential medium that tests the ability of an organism to produce an exoenzyme, called urease, that hydrolyzes urea to ammonia and carbon dioxide. The broth ...

Pollen grains artifact resemble Taenia eggs

Careful study of the inner mass reveals its lack of typical features of an oncosphere normally seen in Taenia eggs (embryonic hooklets, etc.). Absence of the radial striation is ...

Spur Cell (Acanthocyte) and Burr Cell (Echinocyte) Comparision

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