Hugh Leifson Medium : Principle, Preparation and Colony Morphology

Hugh Leifson Medium : Principle, Preparation and Colony Morphology

Hugh Leifson Medium (Oxidative-Fermentative Medium ) is used to distinguish between anaerobic and aerobic breakdown of carbohydrate( glucose).Hugh Leifson Medium was developed by Hugh and Leifson.They described the taxonomic significance of fermentation and oxidative metabolism of carbohydrates in gram- negative intestinal bacteria.There are two ways…

Papanicolaou stains : Principle ,Procedure and Interpretation

Papanicolaou stain : Principle ,Procedure and Result Interpretation

Papanicolaou stains are used to differentiate cells in smear preparations of various body secretions. Pap stain is a very reliable technique. As such, it is used for cervical cancer screening.Malignant cells are generally characterized by relatively large nuclei with an abnormal chromatin pattern and small…

Distilled water Preparation and uses in a Medical Laboratory

Distilled-water-in-the-lab

Among the types of water commonly used in a medical laboratory,Distilled water is one of the most used water in carrying out biological analysis other from deionised water,Tap water etc.. Distilled water is water that has been converted to steam or  gas vapour through boiling…