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Vitamin B12

Vitamin B12, which is also called cyanocobalamin, is a coenzyme synthesized by microorganisms that is required for nucleic acid synthesis. It is released after protein digestion and bound to intrinsic factor in the stomach. The intrinsic…

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CH50

The complement cascade comprises over 20 serum proteins that form part of the innate immune system. The complement sequence consists of classical and alternate (Properdin) pathways which may be activated sequentially by a number of different causes.…

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Medical Director…

During my career I have often been asked to describe the role of the medical director of the clinical laboratory. CLIA Amendments list specific requirements of the laboratory director, but I have never felt that they clearly explain what I do on a…