NEET MDS Shorts
41209
Oral PathologyCherubism is not characterized by unilocular lesions; it is typically bilateral.
32824
NEETMDS
The combination of
sulfamethoxazole and trimethoprim (known as cotrimoxazole) is synergistic
because the two drugs sequentially block the bacterial folate metabolism
pathway. Sulfamethoxazole
inhibits the incorporation of PABA into dihydrofolic acid, while trimethoprim
inhibits the reduction of dihydrofolic acid to tetrahydrofolic acid.
Cotrimoxazole
It is a combination of sulfamethoxazole and trimethoprim. This has
synergistis bactericidal action.
It is used for treating
Uncomplicated UTI
-Respiratory infections
-Gonorrhea
-Otitis media
Dose Trimethoprim 80mg+ Sulfamethanazole 400mg
Cotrimoxazole causes sequential block of the folate metabolam
22433
RadiologyBrown discoloration seen in old radiographic films is due to incomplete fixation.
39312
MicrobiologyThe bacterial population in the gingival sulcus or the pocket that influences the course of periodontal disease has essentially the same organisms found in the healthy sulcus
94205
PhysiologyThe ascending limb of the Loop of Henle is impermeable to water, allowing for the reabsorption of solutes while preventing water from following.
48043
Dental Materials
Retarders in gypsum-based materials slow down the setting reaction by forming an adsorbed layer on hemihydrates, allowing more time for manipulation and placement before the material sets.
66372
Dental Materials
The typical mixing ratio for zinc polycarboxylate cement is 1:2 (powder to liquid).
30035
Pharmacology
In humans, isosorbide mononitrate is not subject to first pass metabolism in the liver.
This reduces the intra- and interindividual variations in plasma evels and leads to predictable and reproducible clinical effects.
13681
General MicrobiologyThe inverted fir tree appearance is characteristic of Bacillus anthracis in gelatin stab culture.
16741
Oral Surgery
The coronoid process can become impinged due to
displacement of the zygomatic arch, restricting the movement of the mandible and
causing trismus (difficulty in mouth opening).