MDS PREP
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.
Trigeminal neuralgia ( tic doulourex ) is characterized by
1. Paralysis of one side of the face
2. Uncontrollable twitching of muscles
3. Sharp, excruciating pain of short duration
4. Prolonged episodes of pain on one side of the face
Oral Pathology
Answer: 3
Trigeminal neuralgia is a chronic pain
condition involving the trigeminal nerve, which supplies sensation to the face.
The hallmark symptom is sudden, severe, stabbing or electric-shock-like pain,
typically lasting for seconds to a few minutes. This pain is often triggered by
stimuli such as touching the face, chewing, or even speaking. Other options
(e.g., paralysis or prolonged episodes) do not describe this condition
accurately.
The pigment associated with haemochromtosis is
1. Bilirubin
2. Haemosiderin
3. Methaemoglobin
4. Myoglobin
Oral Pathology
Answer: 2
The pigment associated with hemochromatosis is hemosiderin.
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.
In radiobiology, the "latent period" represents the period of time between
1. Cell rest and cell mitosis
2. The first and last dose in radiation therapy
3. Film exposure and image development
4. Radiation exposure and its biological effects
In radiobiology, the "latent period" represents the time between radiation exposure and its biological effects.