MDS PREP
A bacterial disease with oral manifestations is
1) Herpes Measles
2) Measles
3) Diphtheria
4) Leishmaniasis
Oral Pathology
Answer: 3
Diphtheria serious bacterial infection that usually affects the mucous
membranes of the nose and throat.
Diphtheria signs and symptoms usually begin 2 to 5 days after a person becomes
infected. Signs and symptoms may include:
A thick, gray membrane covering the throat and tonsils
A sore throat and hoarseness
Swollen glands (enlarged lymph nodes) in the neck
Difficulty breathing or rapid breathing
Nasal discharge
Fever and chills
Tiredness
Skin (cutaneous) diphtheria
A second type of diphtheria can affect the skin, causing pain, redness and
swelling similar to other bacterial skin infections. Ulcers covered by a gray
membrane also may be a sign of skin diphtheria.
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 associated with a low concentration of ionized calcium in the serum?
1. Hypothyroidism
2. Osteogenesis imperfecta
3. Paget"s disease of the bone
4. Tetany
Oral Pathology
Answer: 4
Tetany is associated with a low concentration of ionized calcium in the serum.
What of the following is characterized by left lower quadrant periumbilical pain in an elderly person, with the presence of fever, tender abdomen, leukocytosis, nausea, and vomiting?
1) Acute appendicitis
2) Diverticulitis
3) Gallstones
4) Pancreatitis
Diverticulitis is characterized by left lower quadrant pain, fever, and leukocytosis, especially in elderly patients.
The minimum distance and angle between the X-ray source and operator should be at least
1. 6 feet, 45 degree
2. 6 feet, 135 degree
3. 9 feet, 90 degree
4. 9 feet, 120 degree
Oral Pathology
Answer: 2
The minimum distance should be 6 feet at a 135-degree angle for safety.
The peripheral blood smear of a patient shows features of thalassemia, also presented with anemia. Family history is also +ve. The investigation was done to establish the diagnosis is -
1) ESR estimation
2) Blood spherocyte estimation
3) Bone marrow aspiration
4) Hb-electrophoresis
General Pathology
Answer: 4
Hb-electrophoresis is the investigation done to establish the diagnosis of thalassemia, as it separates different hemoglobin types based on their charge.
The deficiency of which of the following vitamins does not affect tooth development
1. Vit A
2. Vit D
3. Vit C
4. Vit K
Oral Pathology
Answer: 4
Vitamin K deficiency does not affect tooth development.
A case presenting with a gray coloured pseudomembrane whose removal is difficult and painful, can be
1) ANUG
2) Diphtheritic lesion
3) Secondary stage of syphilis
4) Desquamative gingivitis
Oral Pathology
Answer: 2
Diphtheritic lesions are caused by Corynebacterium diphtheriae. The hallmark of diphtheria is a tough gray pseudomembrane on mucosal surfaces like the pharynx or oral cavity. Attempting to remove it causes pain and bleeding. Other conditions like ANUG (acute necrotizing ulcerative gingivitis) produce pseudomembranes but are more localized and less gray.