NEET MDS Shorts
35831
RadiologyThe region closest to satisfying all the principles of shadow casting and parallel placement of the film in a paralleling technique full mouth series of periapical radiographs is mandibular molar view.
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Pharmacology
Corticosteroids have a delayed onset of action and do not reverse acute airway obstruction or hypotension. Instead, they suppress ongoing inflammation, reduce late-phase allergic responses, and decrease the likelihood of recurrent or biphasic anaphylactic reactions. Epinephrine remains the first-line treatment.
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Biochemistry
G6PD deficiency decreases NADPH production, preventing regeneration of reduced glutathione and making RBCs susceptible to oxidative damage.
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Pathology
Correct answer: 3) Primary TB begins with inhaled bacilli implanting near the pleura, typically in the lower part of the upper lobe or upper part of the lower lobe, forming the Ghon focus, which usually caseates. Bacilli drain to regional lymph nodes, which also often caseate; the combination of the parenchymal focus plus nodal involvement is the Ghon complex.
58101
NEETMDSObturation is the process of filling the cleaned and shaped root canal. Instruments like pluggers, spreaders, and lentulospirals are used for this process. A barbed broach, however, is primarily used during the initial stages of root canal treatment to remove the pulp tissue.
83616
RadiologyThe filament in the X-ray tube is heated by the step-down low voltage transformer.
54600
Community Dentistry
For optimal fluoride uptake and protection against dental caries,
tooth surfaces should be exposed to topical fluorides for at least 4 minutes.
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Biochemistry
ABCA1 transfers cholesterol from peripheral cells to Apo A-I, initiating HDL formation.
74028
Orthodontics
Solution Circumferential supracrestal fibrotomy (CSF) eliminates the pull of the stretched supracrestal gingival fibres which are the major cause of orthodontic relapse.
0
Pharmacology
H2 receptor antagonists such as ranitidine block histamine H2 receptors on gastric parietal cells, reducing gastric acid secretion. Although not first-line antiallergic drugs, they may be combined with H1 antihistamines in selected allergic reactions such as urticaria or anaphylaxis.