UNIVERSITY OF JAFFNA, SRI LANKA
SECOND EXAMINATION FOR MEDICAL DEGREES PART I (1st)
JANUARY 2021
Microbiology Paper II
Date: 05.01.2021.
--- Content provided by FirstRanker.com ---
Time allowed: 2 hours
Answer all four questions.
Answer each question in a separate answer book.
-
A 45-year-old patient developed rapidly spreading pain and swelling of the lower limb following a prick injury. On examination, severe edema of the lower limb was noted with erythema, blistering and bullae formation. Gas gangrene was clinically suspected.
- State the most likely anaerobic bacteria contributing to this presentation. (10 marks)
- Describe the pathogenesis of this condition. (60 marks)
- State three principles in managing this patient. (30 marks)
--- Content provided by FirstRanker.com ---
-
A 28-year-old man presented to the dermatology clinic with an itchy rash. On examination, the rash was found to be an annular, scaly lesion with a slightly elevated reddish edge and sharp border. The dermatologist started empirical treatment with antifungal drugs.
- What is the most likely clinical diagnosis for the above stated condition? (10 marks)
- Name three fungal genera that might be responsible for the above lesion. (15 marks)
- Name two other sites where the same fungal genera may cause infection. (10 marks)
- Describe the specimen collection from all three sites and transport to identify the fungal aetiology in this patient. (40 marks)
- Describe the antifungal agents used to treat the infections in all three sites. (25 marks)
--- Content provided by FirstRanker.com ---
-
A 36-year-old man was diagnosed as infected with HIV.
- Describe the possible sources, modes of transmission and risk factors for this infection in this man. (30 marks)
- Describe briefly the pathogenesis of HIV infection and its possible consequences in this man. (20 marks)
- Describe the tests used for screening, confirmation and monitoring the progress of HIV infection. (20 marks)
- A nursing officer accidentally got a needle stick injury while collecting blood from this patient. Describe the post exposure management for this nursing officer. (30 marks)
--- Content provided by FirstRanker.com ---
-
- Explain the term 'sepsis.' (10 marks)
- Briefly describe the pathogenesis of sepsis. (40 marks)
- State the bedside clinical criteria of sepsis (gSOFA) and indicate how organ dysfunction is recognized using the gSOFA score. (20 marks)
-
- Name 5 likely source of sepsis in a 70 year old ventilated patient in the Intensive Care Unit (ICU). (15 marks)
- State what samples you would send the microbiology laboratory from this patient to identify the bacterial cause of sepsis. (15 marks)
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
Get more papers from FirstRanker.com
--- Content provided by FirstRanker.com ---