MDS PREP
The deficiency of which of the following vitamins does not affect tooth development
1. Vit A
2. Vit D
3. Vit C
4. Vit K
Oral Pathology
Answer: 4
Vitamin K deficiency does not affect tooth development.
What is the typical clinical presentation of a patient with a gastrinoma?
1) Sudden painful enlargement of the thyroid
2) Severe abdominal pain, diarrhea, and hypercalcemia
3) Hypoglycemic episodes and abdominal pain
4) Patches of erythematous mucosa in the stomach
Severe abdominal pain, diarrhea, and hypercalcemia are typical clinical presentations of a gastrinoma.
What is the role of vitamin D in calcium metabolism?
1) Increases renal excretion of calcium
2) Decreases absorption of dietary calcium
3) Activates absorption of dietary calcium
4) Inhibits bone resorption
Vitamin D plays a crucial role in calcium metabolism by activating the absorption of dietary calcium in the intestines.
Red fluorescent fluid is seen in
1. Pemphigus
2. Erythema multiforme
3. Lichen planus
4. Porphyria
Oral Pathology
Answer: 4
Red fluorescent fluid is seen in porphyria.
Crew haircut appearance in X-ray skull and Gamna Gandy bodies are seen in -
1) G-6-PD deficiency
2) Hodgkin's lymphoma
3) Hereditary spherocytosis
4) Sickle cell anaemia
General Pathology
Answer: 4
Crew haircut appearance in X-ray skull and Gamna Gandy bodies are associated with sickle cell anemia due to chronic hemolysis and bone marrow hyperplasia.
The main purpose of intensifying screens in extraoral radiographic films is
1. To increase the contrast of film
2. To increase the exposure time
3. To decrease the speed of film
4. Decrease secondary radiation to patient
Oral Pathology
Answer: 4
The main purpose of intensifying screens is to decrease secondary radiation to the patient.
Birbeck’s granules in the cytoplasm are seen in:
1) Langerhans cells
2) Mast cells
3) Myelocytes
4) Thrombocytes
General Pathology
Answer: 1
Birbeck’s granules are characteristic of Langerhans cells, which are involved in the immune response and are found in the skin.
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.