Download University of Jaffna MBBS 2018 October Parasitology Question Paper

Download University of Jaffna (University of Sri Lanka) MBBS (Bachelor of Medicine and Bachelor of Surgery) 2018 October Parasitology Previous Question Paper

UNIVERSITY OF JAFFNA, SRI LANKA
SECOND EXAMINATION FOR MEDICAL DEGREES (1ST) OCTOBER 2018
Parasitology
Date : 23.10.2018
Time allowed: 2 hours
Answer all four questions
1. In the recent past, the World Health Organization has declared that Sri Lanka is free from two
major parasitic diseases
1.1 Name the protozoan and the helminthic diseases that have been recently
eliminated from Sri Lanka
(10 marks)
1.2 Discuss the activities that have been carried out by the respective health
authorities in order to achieve the above mile stone in relation to each of the
parasitic disease you mentioned above
(50 marks)
1.3 Briefly describe the role of a medical officer, attached to a peripheral hospital,
if a patient is suspected to have the protozoan disease which you mentioned in
1.1
(40 marks)
2. 2.1 Name the skin condition caused by each of the following category of parasites
2.1.1
protozoa
(05 marks)
2.1.2
helminth
(05 marks)
2.1.3
ectoparasite
(05 marks)
2.2 How will you differentiate the above skin conditions based on the clinical
presentation
(45marks)
2.3 Briefly describe the sample collection method and the laboratory
investigations procedure to confirm the skin condition mentioned in 2.1.1
(40 marks)
3. Enterobious vermicularis continue to be highly prevalent even after the elimination of other
intestinal helminth infestations in many countries including Sri Lanka.
2.1 Discuss the biological features of the above parasite that pose a challenge
to elimination.
(25 marks)
2.2 Explain the mechanism by which Enterobious vermicularis causes the
pathogenic effects in human in relation to the clinical presentation.
(25 marks)
2.3 Outline the sampling technique used for the confirmation of the above
parasitic condition.
(25 marks)
2.4 Briefly describe the measures to be taken for the effective control of
Enterobious vermicularis despite of the challenges that you mentioned in 2.1 (25 marks)
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4. A 45-year-old woman felt pricking pain in her left ankle while she was cleaning her home garden. A
bleeding puncture wound was noted at the lateral side of her left foot below the ankle. The bite site was
painful and within half an hour the swelling extended up to the mid half of her leg. The family
members suspected snakebite. She was admitted to the nearest tertiary care hospital within 25
minutes. Medical officer on duty did the initial assessment. After 2 hours of observation a decision
was taken to give her antivenom serum, as there were signs of systemic envenoming.
4.1 Name three (3) possible offending snakes
(15 marks)
4.2 Name three (3) principles of the initial assessment
(15 marks)
4.3 What is the antivenom serum regime indicated for this patient?
(05 marks)
4.4 Half an hour after commencing of antivenom serum she developed
itching of body and her blood pressure was 80/60 mmHg. What is the
immediate management for this patient?
(30 marks)
4.5 On the 2nd day of admission, her urine output was less than 200ml, over the
period of 24 hrs. after the bite. The serum creatinine was 2.1trigidl (Normal
0.5m gidi - 1.2mg/d1), platelet count was 10,200/mm 3 , haemoglobin was 8 01--
Explain the reasons for the above findings
(35 marks)

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