NEET MDS Shorts
14423
Dental Materials
Water-based cements include zinc polycarboxylate and calcium sulfate.
22398
Dental Materials
The compressive strength at 1 hour is lowest for the low-copper lathe-cut alloy, which is 45 MPa.
71878
RadiologyThe view in which the patient's chin is placed touching the radiographic cassette is Waters view.
97164
Pharmacology
Dimercaprol (British antilewisite; BAL) 1. Poisoning by As, Hg, Au, Bi, Ni, Sb: it is administered i.m., 5 mg/kg stat, followed by 2-3 mg/kg every 4 – 8 hours for 2 days, then once or twice a day for 10 days. It is partly oxidized and glucuronide conjugated, but mainly excreted as such in 4 – 6 hours. Earlier the treatment is instituted, the better it is. Because the dimercaprolmetal complex dissociates faster in acidic urine and the released metal can damage the kidney, urine is alkalinized during dimercaprol therapy. 2. As an adjuvant to Cal. Disod. Edentate in lead poisoning. 3. As an adjuvant to penicillamine in Cu poisoning and in Wilson’s disease – 300 mg/day i.m. for 10 days every second month. It is contraindicated in iron and cadmium poisoning, because the dimercaprol-Fe and dimercaprol-Cd complex is itself toxic.
94029
OrthodonticsBending the wire between the coil and the tooth, but closer to the coil, allows for effective activation of the retraction mechanism, providing the necessary force for movement.
10424
RadiologyLoss of lamina dura and ground glass appearance of bone is an early radiographic feature of hyperparathyroidism.
17051
BiochemistryThe biochemical defect in Osteogenesis Imperfecta, type II is a deficiency in lysyl hydroxylase.
51511
PedodonticsThe local drug delivery system "ELYZOL" contains metronidazole.
41000
INI CET
In a patient with panfacial trauma and reduced mouth opening (trismus), the submental route for endotracheal intubation is often the most appropriate choice Nasotracheal intubation is contraindicated in panfacial trauma due to potential basilar skull fractures or severe nasal injuries. Orotracheal intubation is not possible due to the reduced mouth opening. Cricothyroidectomy is a surgical airway technique typically reserved for "cannot intubate, cannot ventilate" situations,
33355
NEETMDS
The frozen section procedure is the examination of tissue to make a rapid microscopic diagnosis of a specimen while surgery is taking place. It is often used in oncological surgery to inform the surgeon if the surgical margin is clear of residual cancer, or if residual cancer is present at the surgical margin.
The technical name for this procedure is cryosection. The report given by the
pathologist is usually limited to a "benign" or "malignant diagnosis, and
communicated to the surgeon operating via intercom. When operating on a previously confirmed malignancy, the main purpose of the pathologist is to
inform the surgeon if the surgical margin is clear of residual cancer, or if
residual cancer is present at the surgical margin
Advantages of frozen section biopsy:
If more tissue is needed to make an accurate diagnosis, the surgeon is able to
obtain an additional sample, avoiding a second operation.
If the tissue is determined to be cancerous and is amenable to surgery, the mass
can b removed at that time
If the tissue is determined to be benign (not cancerous), then the mass may not
always need to be removed and the surgery can end.