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Introduction of C-Reactive Protein (CRP) Test C-Reactive Protein (CRP) is a carbohydrate-reactive protein. The C-Reactive Protein (CRP) Test was so named because it was first identified as a substance in the serum of patients with acute inflammation that reacted with the somatic ‘C’ carbohydrate antigen …
Introduction of Rapid Plasma Reagin (RPR) Test RPR is a screening non-specific test for syphilis caused by a bacterium, Treponema pallidum. It has replaced the VDRL test due to having properties like no need of preparing fresh reagents daily, no need for a microscope, and …
Introduction of TPHA Test TPHA test stands for Treponema pallidum hemagglutination. This is a confirmatory test for syphilis that is caused by a bacterium, T. pallidum. TPHA test is a sensitive indirect hemagglutination test, that detects specific Treponema pallidum antibodies in serum within one hour. It uses …
Introduction of VDRL Test VDRL stands for Veneral disease research laboratory. The laboratory was renamed the Treponemal Pathogenesis and Immunology Branch of the United States Public Health Service. The Venereal Disease Research Laboratory (VDRL) test is one of two variations of micro flocculation procedures used for serological testing …
Introduction of Staphylococcus aureus Scientific classification of Staphylococcus aureus is given as: Domain Bacteria Phylum Firmicutes Class Bacilli Order Bacillales Family Staphylococceae Genus Staphylococcus Species aureus Table: Biological Classification of Staphylococcus aureus Staphyle means bunch and Kokko mean berry. Staphylococcus aureus was isolated by Pasteur (1880) from a pus sample. …
Introduction of CLED Agar CLED stands for cysteine, lactose, and electrolyte-deficient. CLED agar or medium is a differential culture medium used for the isolation and enumeration of bacteria in urine specimens from suspected cases of urinary tract infection (UTI). It favors the growth of all …
Introduction of Lowenstein-Jensen (LJ) Medium Lowenstein-Jensen (LJ) Medium is named after the surnames of Austrian pathologist Ernst Lowenstein (1878–1950) and the Danish chemist Kai Arne Jensen (1908–1992). The etiological agent of tuberculosis is Mycobacterium tuberculosis. It requires aerobic conditions and a protein-enriched medium for culture. The short …
Phenylalanine Deaminase (PDA) Test PDA stands for phenylalanine deaminase and PDA tests positive and negative are as shown below footage. It is used in the differentiation of gram-negative enteric bacilli based on the ability of the microorganisms to produce phenyl pyruvic acid by oxidative deamination. The deamination of …