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Introduction of Hematoxylin and Eosin Stain Hematoxylin and eosin stain is abbreviated as H&E stain. It is one of the principal tissue stains used in histopathology to find out cancer from a suspected biopsy. The stain was first introduced by A. Wissowzky in 1876. The cell nuclei …
Introduction of Pap Test Pap test is also known as Pap smear and Pap stain. Pap stain was named after the three letters of the surname of developer George Papanicolaou in 1942 and was routinely used for cytological stain. It is the most common staining …
Introduction of Auramine Staining Auramine is a fluorochrome stain used to visualize acid-fast structures of various microorganisms especially Mycobacterium tuberculosis and in modified form for Mycobacterium leprae, Nocardia species, Cryptosporidium parvum, Cyclospora cayetanensis , Isospora belli, and fungal spores. Ziehl-Neelsen (hot), and Kinyoun (cold) are …
Introduction of Giemsa Stain Giemsa stain is a type Romanowsky stain that stains nuclei and cells. It was initially designed for the detection of malarial parasites in blood smears, but it is also used in histology for routine examination of blood smears. This technique uses for …
Introduction of Gram-Negative Bacilli and Coccobacilli Bacteria ‘Gram-Positive Negative (GNB)‘ is also called Gram-Negative Rods (GNR) bacteria which take safranin after decolorization and stain pink or red on Gram’s staining but the shape should be rod ( for Gram-negative bacilli) but the combination of both …
Introduction of Gram-Negative Cocci (GNC) Bacteria Medically relevant Gram-Negative Cocci (GNC) Bacteria are Neisseria gonorrhoeae (causative agent of sexually transmitted disease), Neisseria meningitidis (causes meningitis), Moraxella catarrhalis (responsible for respiratory symptoms), Veillonella parvula (anaerobic gram-negative coccus cause osteomyelitis). List of Gram-Negative Cocci Bacteria S. No. …
Introduction of Gram Positive Rods (GPR) ‘Gram Positive Bacilli (GPB)‘ is also called Gram Positive Rods (GPR) bacteria which retain crystal violet dye and stain blue or purple on Gram’s staining. The most common medically important bacteria of GPR are Mycobacterium tuberculosis, Mycobacterium leprae, Listeria monocytogenes, …
Introduction of Gram Positive Cocci ‘Gram Positive Cocci (GPC)‘ bacteria retain crystal violet dye and stain blue or purple on Gram’s staining. The most common medically important bacteria of GPC are Staphylococcus aureus, Streptococcus pneumoniae, Enterococcus species, Streptococcus pyogenes, Streptococcus agalactiae and Staphylococcus saprophyticus. List …