NEET MDS Shorts
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MedicineDoxapram and nikethamide are both known as analeptic agents, which are central nervous system stimulants. Propylbutamide is a less common or potentially misspelled term, but doxacurium is a non-depolarizing neuromuscular blocking agent, not a stimulant. Therefore, doxacurium is the agent that is not an analeptic.
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Oral Medicine
The primary mode of diagnosis for Huntington's disease is genetic testing. It involves identifying the expansion of a trinucleotide repeat (CAG) in the HTT gene on chromosome 4.
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Physiology
The vagus nerve, as part of the parasympathetic system, innervates various organs in the thoracic and abdominal cavities, influencing heart rate and gastric motility among other functions.
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General MicrobiologyActinomycin D is an antibiotic that inhibits RNA synthesis. In the case of orthomyxoviruses, it effectively inhibits their multiplication by preventing the transcription of viral RNA, thereby blocking the virus ability to replicate. Actinomycin D inhibits the multiplication of orthomyxoviruses by blocking RNA synthesis, which is crucial for viral replication.
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General PathologySystemic lupus erythematosus (SLE) is characterized by a malar rash, arthritis, serositis, and the presence of antinuclear antibodies.
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ProsthodonticsAccording to Monson's spheric theory of occlusion, each cusp and incisal edge conforms to a segment of a sphere, 8 inches in diameter, with its center in the region of the glabella. The glabella is the area of skin and underlying bone between the eyebrows and above the nose. This theory is an ideal model used as a reference in dental restorative procedures, particularly in prosthodontics and orthodontics.
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Oral SurgeryIn peripheral nerve block, the local anaesthetic with the longest duration of action is Bupivacaine.
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EndodonticsIn the walking bleach procedure, sodium perborate is the primary technique used. The walking bleach method involves: 1) Mixing sodium perborate with water or 3% hydrogen peroxide to form a paste, 2) Placing this mixture in the pulp chamber of endodontically treated teeth, 3) Sealing the access cavity with temporary restoration, 4) Patient returns after 3-7 days for evaluation and possible reapplication. Sodium perborate releases oxygen slowly, providing sustained bleaching action. HCl is used in microabrasion, not walking bleach.
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RadiologyIntensifying screens are primarily used to decrease patient radiation exposure. They convert X-ray energy to light energy, which is more efficient at exposing the film. This allows for lower X-ray doses while maintaining adequate image density, thus reducing radiation exposure to the patient.
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PedodonticsWear facets are not a definite indication of occlusal correction.