MDS PREP
Acrodermatitis enteropathica is due to deficiency of
1. Mercury
2. Zinc
3. Lead
4. Bismuth
Oral Pathology
Answer: 2
Acrodermatitis enteropathica is due to a deficiency of zinc.
Radiation dose to patient can be reduced by all of the following except
1. Speed films
2. Filters
3. By increasing target-object distance
4. Decreasing kilovoltage potential
Radiation dose can be reduced by using speed films, filters, and increasing target-object distance.
What is the typical presentation of the severe form of osteopetrosis?
1) Asymptomatic in adulthood
2) Death in childhood
3) Mild symptoms in childhood
4) Normal bone density
The severe form of osteopetrosis typically presents with death in childhood due to complications from the disease.
In which disease state do the cartilage columns lack orderly arrangement, fail to calcify properly and are not resorbed and replaced by bone in the usual fashion?
1. Osteopetrosis
2. Cherubism
3. Pierre-Robin syndrome
4. Achondroplasia
Oral Pathology
Answer: 4
In achondroplasia, the cartilage columns lack orderly arrangement and fail to calcify properly.
When kVp is changed from 70 to 80 kVp the energy of photons produced
1. Decreased by 10 times
2. Increased two times
3. Increased by 10 percent
4. Remains constant
Oral Pathology
Answer: 2
Changing kVp from 70 to 80 increases the energy of photons produced significantly.
Lichenoid reactions are mainly due to
1. Intake of certain drugs
2. Betel nut chewing
3. Cigarette smoking
4. Intake of alcohol
Oral Pathology
Answer: 1
Lichenoid reactions are mainly due to the intake of certain drugs.
Which type of gastritis is most commonly associated with Helicobacter pylori infection?
1) Diffuse nontoxic goiter
2) Hashimoto's thyroiditis
3) Chronic antral (type 2) gastritis
4) Hypertrophic gastritis (Menetrier's disease)
Chronic antral (type 2) gastritis is most commonly associated with Helicobacter pylori infection.
Lession of facial nerve at level of stylomastoid foramen leads to
1. Loss of taste sensation from anterior 2/3 of tongue
2. Paralysis of orbicularis oculi muscle
3. Losss of innervation to stapedius
4. Loss of lacrimal secretion
Lesion of the facial nerve at the stylomastoid foramen leads to paralysis of the orbicularis oculi muscle.