MDS PREP
Defect leading to thalassemia lies in -
1) Haemoglobin
2) Osmotic fragility
3) RBC membrane
4) Platelets
General Pathology
Answer: 1
The defect leading to thalassemia lies in the hemoglobin itself, specifically in the globin chain synthesis.
Complication of irradiation of mouth may include all EXCEPT
1. Accelerated caries activity
2. Caries in unusual sites
3. Accelerated periodontal diseases
4. Xerostomia
Oral Pathology
Answer: 3
Accelerated periodontal diseases is not a complication of irradiation of the mouth.
False about cherubism
1. Unilocular lesion
2. Bilateral
3. Presence of giant cell
4. Delayed eruption of permanent teeth
Cherubism is not characterized by unilocular lesions; it is typically bilateral.
Osteoradionecrosis results from
1. Infection, trauma, radiation
2. Radiation, trauma, infection
3. Trauma, radiation, infection
4. None of the above
Oral Pathology
Answer: 2
Osteoradionecrosis results from radiation, trauma, and infection.
Patient reports with discoloured teeth bearing brown stains. The teeth glow fluorescent in UV light. The most likely diagnosis is
1. Porphyria
2. Amelogenesis imperfecta
3. Hutchinson"s teeth
4. Tetracycline staining of teeth
Oral Pathology
Answer: 4
The most likely diagnosis for discolored teeth that glow fluorescent in UV light is tetracycline staining of teeth.
Which is a must for prothrombin time?
1) Thromboplastin
2) Prothrombin
3) Fibrinogen
4) Fibrin
General Pathology Answer: 1Thromboplastin is essential for prothrombin time, as it is a tissue factor that initiates the coagulation cascade.
A young patient who has a long standing habit of sucking lemons has loss of tooth substance affecting the anterior teeth. The correct term for this gradual loss of tooth substance is called
1. Abrasion
2. Attrition
3. Erosion
4. Intrusion
Oral Pathology
Answer: 3
The gradual loss of tooth substance due to sucking lemons is called erosion.
In the lipooxygenase pathway of the arachidonic acid metabolism, which of the following products helps to promote platelet aggregation and vasoconstriction?
1) C5a
2) Thromboxane A2
3) Leukotriene B4
4) C1 activators
General Pathology
Answer: 2
Thromboxane A2, produced in the lipooxygenase pathway, promotes platelet aggregation and vasoconstriction, playing a key role in hemostasis.