NEET MDS Shorts
76957
RadiologyGamma camera in Nuclear Medicine is used for measuring the radioactivity.
34647
General MedicineAngina pectoris can cause a medical emergency in the dental office with substernal pain, facial pallor, and cold perspiration. The stress of dental procedures can precipitate anginal attacks in susceptible patients. Other conditions listed typically present differently.
16904
General Medicine
Hydrocortisone, a glucocorticoid, is administered to reduce vascular permeability and suppress the systemic inflammatory response in anaphylaxis. Its effects are not immediate but can help in preventing a biphasic reaction and prolonging symptoms.
60471
RadiologyThe best image obtained if duplicating film is exposed to UV rays.
50008
PhysiologyThe middle piece of a sperm cell contains mitochondria, which provide the energy needed for sperm motility and movement towards the egg.
12904
INI CET
H-file instrumentation is considered the most efficient method for GP retrieval because it allows for mechanical removal of the material from within the root canal space. While solvents and thermal methods exist, they are often slower or harder to control.
92216
General PathologyTetany is a common symptom of low serum calcium levels, characterized by muscle cramps and spasms due to increased neuromuscular excitability.
97052
Oral MedicineOral PrEP with regimens containing Tenofovir disoproxil fumarate (TDF) requires confirmation of adequate renal function, specifically a creatinine clearance of at least 60 mL/min, because TDF can affect kidney function in some individuals. While an HIV test is essential to confirm the person is negative for HIV before starting PrEP, the specific renal function check relates to the drug's safety profile.
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General Medicine
TNF is considered the main effector of injury in alcoholic hepatitis. It is produced by activated macrophages, particularly Kupffer cells, and plays a critical role in the initiation and perpetuation of inflammation and necrosis in the liver.
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Oral SurgeryLocal anesthetics work by blocking sodium channels in nerve membranes, which requires the drug to cross the cell membrane. Local anesthetics are weak bases and exist in both charged (ionized) and uncharged (unionized) forms. The uncharged form is lipid-soluble and can readily diffuse across the nerve cell membrane.