MDS PREP
Slightly raised vesicles rupturing to form ulcers are a feature of
1) Rubeola
2) Rubella
3) Condyloma acuminatum
4) Chicken pox
Pathology Answer: 4
Chicken pox presents with multiple dermal lesions characteristically with vesicles, pustules which may secondarily ulcerate
The prothrombin levels that is of concern to dentist extraction is
1. 20 % normal PT
2. 40 % normal PT
3. 50 % normal PT
4. 100 % normal PT
A prothrombin level of 20% normal PT is of concern for dental extractions.
Which of the following statements about Addison's disease is correct?
1) Addison's disease is caused by excessive secretion of cortisol from the adrenal cortex.
2) Hyperpigmentation is not a classic physical finding in Addison's disease.
3) The mosaic pattern of bone is a characteristic of Addison's disease.
4) Increased incidence of astrocytomas is associated with Addison's disease.
Hyperpigmentation is a classic physical finding in Addison's disease, which is caused by adrenal insufficiency.
Which of the following cell types show abnormal function when there is a history in a young adult of multiple arm and leg fractures following minor falls, with a slight weakness of facial muscles on the left, mild anemia, and with generalized bony widening with partial obliteration of marrow spaces?
1) Granulocytic stem cells
2) Megakaryocytes
3) Plasma cells
4) Osteoclasts
General Pathology Answer: 4
Osteoclasts show abnormal function in conditions leading to multiple fractures, as they are responsible for bone resorption.
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.
If a woman 22 weeks pregnant has ankle edema and proteinuria, the presence of which of the following would determine if she has preeclampsia?
1) Diabetes mellitus
2) Hyperuricemia
3) Hypertension
4) Systemic lupus erythematosus
General Pathology Answer: 3
Hypertension is a key factor in diagnosing preeclampsia in a pregnant woman with ankle edema and proteinuria.
The extracellular polysaccharide synthesized by cariogenic streptococci in the presence of excess sucros is best described as
1) Mucopolysaccharide
2) Dextran-like glucan
3) Glycogen-like glucan
4) Amylopectin
Oral Pathology
Answer: 2
Cariogenic streptococci, particularly Streptococcus mutans, synthesize extracellular polysaccharides when exposed to high levels of sucrose. These polysaccharides are primarily dextran-like glucans, which are formed from the polymerization of glucose units. Dextran contributes to the formation of dental plaque and biofilm, facilitating the adherence of bacteria to tooth surfaces and promoting caries development.
Quantity of current can be increased by
1. Increased milliamperage
2. Increased time
3. Increased tube current
4. All of the above
Oral Pathology
Answer: 4
Quantity of current can be increased by increasing milliamperage, time, and tube current.