MDS PREP
A patient who has geen given tumoricidal dose of radiotherapy recently reports to dental clinic with painful carious exposed mandibular first molar with periapical abscess. The treatment of choice should be
1. Extraction of the offending tooth
2. Root canal treatment if possible
3. No treatment should be given
4. Incision and drainage of abscess
Oral Pathology
Answer: 2
Root canal treatment is the treatment of choice for a patient with a painful carious exposed mandibular first molar with periapical abscess.
Which of the following is a common complication of hyperparathyroidism?
1) Osteoporosis
2) Osteopetrosis
3) Renal stones
4) Hypoparathyroidism
A common complication of hyperparathyroidism is the formation of renal stones due to elevated calcium levels in the urine.
Heterozygous sickle cell anemia gives protection against -
1) G6PD
2) Malaria
3) Thalassemia
4) Dengue fever
General Pathology
Answer: 2
Heterozygous sickle cell anemia provides protection against malaria due to the altered red blood cell environment that is less hospitable to the malaria parasite.
Which of the following is the MOST likely explanation for when two days after removal of a cancerous neck lesion, there is thigh and calf cramps, tingling around the lips, low serum calcium, and high serum phosphate?
1) Hyperparathyroidism
2) Primary hypoparathyroidism
3) Pseudohypoparathyroidism
4) Renal failure
General Pathology Answer: 2
The symptoms described, including low serum calcium and high serum phosphate, are indicative of primary hypoparathyroidism, which can occur after the removal of parathyroid glands.
Paroxymal noctural hemoglobinuria is due to -
1) Acquired red cell defect
2) Congential red cell defect
3) Auto immune defect
4) Lead poisoning
General Pathology
Answer: 1
Paroxysmal nocturnal hemoglobinuria is due to an acquired red cell defect, specifically a defect in the cell membrane that makes red blood cells susceptible to lysis.
Which of the following are a triad of the signs and symptomos of osteogenesis imperfecta
1. Blue sclera, sparse hair, anhydrosis
2. Enlarged hand, feet, maxilla, mandible
3. Blue sclera, brittle bones, opalescent dentin
4. Blue sclera, arachonodactyly, brittle bones
Oral Pathology
Answer: 3
The triad of signs and symptoms of osteogenesis imperfecta includes blue sclera, brittle bones, and opalescent dentin.
Penetration power of X-ray is measure of
1. Exposure time
2. Milliamperage
3. Kilovoltage
4. None of the above
Oral Pathology
Answer: 3
Penetration power of X-ray is primarily measured by kilovoltage.
Bell"s palsy is triggered by
1. Exposure to cold
2. Tooth extraction
3. Local and systemic infection
4. Any of the above
Oral Pathology
Answer: 4
Bell's palsy can be triggered by exposure to cold, tooth extraction, or infections.