Kayser Fleischer ring in Wilson’s Disease

Kayser Fleischer ring in Wilson’s Disease is corneal ring with golden brown color and contrasted clearly against a gray-blue iris. Note that the darkness of the ring increases ...

Neomycin Blood Agar

Neomycin Blood Agar based on Columbia Agar enriched with 7% Horse Blood this formulation has been modified to include Neomycin, which will inhibit most gram-positive and gram-negative ...

A Schematic of the aPTT

Activated Partial Thromboplastin time (aPTT) , is common screening test done to evaluate function of the intrinsic clotting system.

Chlorhexidine Antiseptic Action

Chlorhexidine is effective on both gram positive and negative, although some gram negative bacteria have resistance. The bactericidal effect is a result of the binding of this cationic ...
PCR basic steps

PCR: Polymerase Chain Reaction

The polymerase chain reaction (PCR) is a biochemical technology in molecular biology used to amplify a single or a few copies of a piece of DNA across several orders of magnitude, generating ...

Bacteria in urine sediments

Bacteria can be identified in unstained urine sediments when present in sufficient numbers by their characteristic rod shapes. This is more readily done for bacilli than cocci, which ...

different tube with short description

acid-fast bacilli by fluorescence microscopy

Auramine-Rhodamine stain

The Auramine-Rhodamine stain (AR), is histological technique used to visualize acid-fast bacilli using fluorescence microscopy, especially the Mycobacterium genus like Tuberculosis ...

some errors during blood draw

possible causes of urine dipstick results

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