NEET MDS Shorts
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General Medicine
Crohn's disease most commonly affects the distal ileum, which is the last part of the small intestine that connects to the large intestine.
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General MicrobiologyAmoebic dysentery, caused by the protozoan parasite Entamoeba histolytica, is characterized by the presence of ghost cells in the stool. Ghost cells are the remnants of red blood cells that have been phagocytosed by the amoeba. These cells are ingested and their cytoplasm is removed, leaving only the cell membrane, which gives them a "ghost-like" appearance under the microscope. This feature helps distinguish amoebic dysentery from bacillary dysentery, which is caused by bacteria such as Shigella species. Bacillary dysentery typically shows the presence of white blood cells (pus cells) and red blood cells in the stool, but not ghost cells.
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ProsthodonticsPre-extraction records provide the most accurate information regarding the size, shape, and position of the teeth before extraction, making them the best criterion for selecting replacement teeth in prosthodontics.
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General MedicineWhile wheezing can occur in patients with COPD, it is not a common physical examination finding.
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Dental MaterialsThe preferred method for degassing powered gold restorations is the use of an alcohol flame, specifically one that is a clean blue flame from absolute or 90% ethyl/methyl alcohol. The material is held in the flame until it reaches a dull red glow, which typically takes 15-20 seconds. This process removes any trapped air or volatile components that could compromise the integrity of the restoration.
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PhysiologyIn a healthy individual, glucose is completely reabsorbed when the plasma concentration is 100 mg/100 ml or less.
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PedodonticsThe offset angle of a Gracey curette between the blade and shank is 60 degrees.
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General MicrobiologyHLA class I antigens are the principal antigens that induce an immune response in the host against transplanted tissues.