MDS PREP
The following factors play a role and cause variations in susceptibility of sensory nerve fibers to local anaesthesia
1) Diameter of the nerve fiber
2) Distance between nodes of Ranvier
3) Length of nerve fiber
4) All of the above
Oral Surgery
Answer: 4
A mandibular molar was extracted because of advanced caries. After one month patient developed an extraoral indurated swelling near the previous extraction site. Multiple draining sinuses appeared and drained pus with yellow granules. The most probable diagnosis is
1) Histoplasmosis
2) Tuberculosis
3) Actinomycosis
4) Streptococcal infection
Oral Surgery
Answer: 3
Among the following which stage of anaesthesia describes the level of conscious sedation?
1) Stage I
2) Stage II
3) Stage III plane 1
4) Stage III plane 2
Oral Surgery
Answer: 1
Three common symptoms indicating the correct level of sedation after diazepam administration is
1) Blurring of vision, slurring of speech & loss of gag reflex
2) 50 % ptosis eyelids, blurring of vision, slurring of speech
3) Paraesthesia of lips, tongue and fingers
4) None of the above
Oral Surgery
Answer: 2
When suturing skin incisions in the facial region, the edges are kept
1. everted
2. overlapped
3. edge to edge
4. inverted
Oral Surgery
Answer: 1
Serum sickness usually occurs after a sensitization period of
1. 24 hours
2. 5 days
3. 1-3 weeks
4. 4-8 weeks
Oral Surgery
Answer: 3
Which of the following is true?
1. Bleeding time is normal in aplastic anemia
2. Clotting time is prolonged in thrombo cytopenic purpura
3. Clotting time is normal in parahemo philia
4. Clotting time is normal in polycythemia vera
Oral Surgery
Answer: 4
Which of the following always indicates obstruction to the airway?
1) Slow pounding pulse
2) Stertorous breathing
3) Increase in pulse rate
4) Decrease in blood pressure
Oral Surgery
Answer: 2
Stertorous breathing is a sign of airway obstruction, indicating that the airway is compromised and requires immediate attention.