Bacteriology Archives - Page 45 of 46

Coagulase Test: Introduction, Principle, Types, Test Requirements, Procedure, Result Interpretation, List of Coagulase Positive and Negative Bacteria, Limitations, and Keynotes

December 5, 2022January 4, 2022 by Medical Lab Notes

Introduction of Coagulase Test The coagulase test is an enzymatic assay that is applied to differentiate Staphylococcus aureus (positive) from coagulase-negative staphylococci (CoNS). Coagulase is an enzyme formed by S. aureus which changes soluble fibrinogen of plasma to insoluble fibrin. S. aureus produces two forms of coagulase. One is bound coagulase …

Citrate Utilization Test: Introduction Principle, Procedure, Result and Interpretation, Citrate Utilization Test Positive and Negative Bacteria List and keynotes

December 5, 2022January 3, 2022 by Medical Lab Notes

Introduction A citrate utilization test is the most commonly used routine biochemical test for Gram-negative rods in bacteriology for the identification of bacteria on the basis of citrate utilization. Klebsiella pneumoniae is the citrate utilization-positive organism while Escherichia coli is negative. Principle of Citrate Utilization Test …

Common Formulae of Diagnostic Laboratory: Introduction, List of Formulae, and Description

December 5, 2022January 3, 2022 by Medical Lab Notes

Required Common Formulae of Diagnostic Laboratory

Introduction of Common Formulae of Diagnostic Laboratory The ‘Common Formulae of Diagnostic Laboratory’ title is really useful who are involved in the Department of Pathology and Laboratory Medicine tests reporting as well as students who are related to this branch of health science. The author …

Catalase Test: Introduction, Principle, Procedure, Result Interpretation, and Precautions

December 5, 2022January 1, 2022 by Medical Lab Notes

Introduction of Catalase Test The catalase test is the most common in bacteriology and is commonly used to differentiate those bacteria that produce this enzyme, such as staphylococci, from non-catalase producing bacteria such as streptococci. It is two types depending on the testing methods and they …

Oxidase Test for Bacteria: Introduction, Principle, Procedure, Result Interpretation, and Keynotes

December 5, 2022January 1, 2022 by Medical Lab Notes

Introduction of Oxidase Test (Kovac’s Method) Gordon and McLeod introduced the application of a dimethyl-phenylenediamine dihydrochloride solution to test for the presence of oxidase systems in 1928. In particular, they used the test to differentiate N. gonorrhoeae (oxidase test positive) from Staphylococcus species and Streptococcus species (oxidase negative). The sensitivity of the …

Body Fluid Analysis: Introduction, List of Tests, Unit and Normal Range

December 5, 2022December 31, 2021 by Medical Lab Notes

Introduction of Body Fluid Analysis Body fluid or cavity fluid is the fluid that covers our vital organs that not only reduces friction between the membranes but also delivers oxygen and nutrients to the cells, and takes away waste materials, which are then eliminated with …

Transudates and Exudates: Introduction, Differences between them, and Keynotes

December 5, 2022December 30, 2021 by Medical Lab Notes

Transudates and Exudates: Introduction and Differences between them

Introduction of Transudates and Exudates Transuadtes are serous cavities fluids that accumulate as a result of non-inflammatory mechanisms while exudates are serous cavities and tissue fluids which accumulate due to inflammatory processes. Differences between Transudates and Exudates The Differences between transudates and exudates are as …

Bacteria-wise Antimicrobial Susceptibility Testing (AST): Introduction, List of Bacterial Panel, Antibiotics

December 5, 2022December 28, 2021 by Medical Lab Notes

Introduction of Bacteria-wise Antimicrobial Susceptibility Testing (AST) All antimicrobial agents/ antibiotics are not applicable for all bacteria and for this reason, we should follow organism-wise antibiotics policy. As we know, antimicrobial resistance (AMR) is increasing day by day but no new antibiotic has not been …