MDS PREP
Yellowish discolouration of oral mucous membrane, skin and sclera of eye is
1. Pernicious anaemia
2. Sickle cell anaemia
3. Chloromycin therapy
4. Carotinemia
Oral Pathology
Answer: 4
Yellowish discoloration of the oral mucous membrane, skin, and sclera of the eye is seen in carotinemia.
Which of the following is most sensitive to radiation induced cancer
1. Nerves
2. Female breast
3. Thyroid
4. Skin
Oral Pathology
Answer: 2
The female breast is most sensitive to radiation-induced cancer.
A 10-year-old child presents with anaemia and recurrent fractures. The X-ray shows diffuse hyperdensity of bone. The diagnosis is most likely to be
1. Osteogenesis imperfecta
2. Osteopetrosis
3. Osteochondroma
4. Hyperparathyroidism
The diagnosis for a child with anemia and recurrent fractures showing diffuse hyperdensity of bone is osteopetrosis.
The Maximum penetration among the following is seen with which ray
1. Alpha
2. Beta
3. Gamma
4. Electron beam
Oral Pathology
Answer: 3
Gamma rays have the maximum penetration among the listed types of radiation.
Open ended lead-lined cones reduce
1. Intensity of scattered radiation
2. Intensity of primary radiation
3. Level of scattered radiation
4. All of the above
Oral Pathology
Answer: 3
Open-ended lead-lined cones reduce the intensity of scattered radiation.
Oral lesions consisting of large numbers of broad-based papillary projections, with tiny abscesses developing in an area of intense erythema, is most likely to be
1. Pyogenic granuloma
2. Gangrenous stomatitis
3. Tularemia
4. Pyostomatitis vegetans
Oral Pathology
Answer: 4
Pyostomatitis vegetans is characterized by broad-based papillary projections and can present with pustules or abscesses in an inflamed area. It is often associated with inflammatory bowel disease.
Choose the false statement among the four
1. X-rays are ionizing rays
2. X-rays can be focused
3. X-rays cannot be seen or touched
4. X-rays can cause mutation
Oral Pathology
Answer: 2
X-rays can be focused is a false statement; they cannot be focused in the same way as light.
Speed at which electron travel in gas tube once released from cathode filament is dependent on
1. Potential difference between electrodes
2. Angle between filament and anoxic target
3. Amount of kilovoltage applied to the circuit
4. Intensity of current applied to target
Oral Pathology
Answer: 1
The speed at which electrons travel in a gas tube is primarily dependent on the potential difference between electrodes.