Guess Paper 1: Clinical Bacteriology Fall – 2020 Past Papers
University Name – Confidential
Time Allowed: 3 hours
Total Marks: 70, Passing Marks (35)
Q. No. 1: Mark the following statements either as True or False.
a. Staphylococci are part of the normal flora and important human pathogens. (True / False)
b. Impetigo is an infection of urinary tract. (True / False)
c. Gram-positive diplococci” may suggest Streptococcus pneumonia. (True / False)
d. E. coli has a polysaccharide capsule that protects it from phagocytosis. (True / False)
e. Asymptomatic carriage of S. aureus is found in up to 100% of healthy people, in the nose, skin, axilla or perineum (True / False)
f. Staphylococcus epidermidis is the most important coagulase-negative staphylococci. (True / False)
g. The causative agent of Impetigo is Streptococcus agalactiae. (True / False)
h. Staphylococci are part of the normal flora and important human pathogens. (True / False)
i. Streptococcus pyogenes is carried asymptomatically in the pharynx of 5–30% of the population. (True / False)
j. Gram-positive cocci in clusters” may suggest Staphyloccocus species. (True / False)
k. S. pneumoniae, S. pyogenes, H. influenzae, M. catarrhalis are the commonest causative organisms of Otitis media and sinusitis. (True / False)
l. Gram-positive cocci in chains” may suggest Streptococcus species. (True / False)
m. Streptococcus is a catalase-positive bacterium. (True / False)
n. Most Pseudomonas spp. are environmental organisms that can cause opportunistic infections in a healthcare environment. (True / False)
Q. No. 2: Write epidemiology, clinical features, complications and diagnosis of LRTI. (4+4+3+3 Marks)
Q. No. 3: What is UTI? Write anatomical considerations, Clinical features, Treatment and prevention of Urinary
Tract Infection. (2+3+4+2+3 Marks)
Q. No. 4: Write a detailed note on.
(a) MRSA? (8 Marks)
(b) Mechanism of resistance (6 Marks)
Q. No. 5: What are biosafety levels? Write detail of the four biosafety levels? (14 Marks)
Q. No. 6: Differentiate the following:
1. Cellulitis (2 Marks)
2. Necrotizing fasciitis (2 Marks)
3. Erythrasma (2 Marks)
4. Erysipelas (2 Marks)
5. Folliculitis (2 Marks)
6. Paronychia (2 Marks)
7. Impetigo (2 Marks)
Q. No. 7: (a) Describe different microbiology lab practices and safety rules? (7 Marks)
(b) Explain how different biological specimens are collected and transported. (7 Marks)
Guess Paper 2: Clinical Bacteriology Spring – 2020 Past Papers
University Name – Confidential
Time Allowed: 3 hours
Total Marks: 70, Passing Marks (35)
Q.1: Mark the following statements either as True or False.
a. Staphylococci are part of the normal flora and important human pathogens. (True / False)
b. Impetigo, is and infection of urinary tract. (True / False)
c. Gram positive cocci in chains” may suggest Streptococcus species. (True / False)
d. Gram-positive cocci in clusters” may suggest Staphyloccocus species. (True / False)
e. Gram-positive diplococci” may suggest Streptococcus pneumonia. (True / False)
f. Staphylococci are part of the normal flora and important human pathogens. (True / False)
g. Streptococcus is a catalase-positive bacterium. (True / False)
h. Asymptomatic carriage of S. aureus is found in up to 100% of healthy people, in the nose, skin, axilla or perineum (True / False)
i. The causative agent of Impetigo is Streptococcus agalactiae. (True / False)
j. Staphylococcus epidermidis is the most important coagulase-negative staphylococci. (True / False)
k. Streptococcus pyogenes is carried asymptomatically in the pharynx of 5–30% of the population. (True / False)
l. E. coli has a polysaccharide capsule that protects it from phagocytosis. (True / False)
m. S. pneumoniae, S. pyogenes, H. influenzae, M. catarrhalis are the commonest causative organisms of Otitis media and sinusitis. (True / False)
n. Most Pseudomonas spp. are environmental organisms that can cause opportunistic infections in a healthcare environment. (True / False)
Q.2: Write a short note on Pathogenesis, clinical importance, and laboratory diagnosis of Staphylococcus aureus. (5+5+4 Marks)
Q. 3: What are the characteristics, habitat, transmission mode, and diseases caused by Streptococcus pneumonia? (5+2+2+5 Marks)
Q.4: Write a detailed note on.
(a) MRSA? (3 Marks)
(b) Mechanism of resistance (6 Marks)
Q.5: What is the importance of the infection acquired in hospital environments? (7 Marks)
(b) Explain how the infection spreads in hospital environments? (7 Marks)
Q.6: (a) Discuss the following aspects of Mycobacterium tuberculosis.
1. Epidemiology and pathogenesis (5 Marks)
2. Clinical features (5 Marks)
3. Laboratory diagnosis (4 Marks)
Q. No. 7: (a) Describe different laboratory hazards and what the measures for protection are? (7 Marks)
(b) Explain how biological specimens are collected and transported. (7 Marks)
Guess Paper 3: Clinical Bacteriology Spring – 2019 Past Papers
University Name – Confidential
Time Allowed: 3 hours
Total Marks: 70, Passing Marks (35)
Q .1 ¬(Marks: 14)
(a): Mark the following statements either as True or False. (6 Marks)
i. The predominant organism on the skin is Staphylococcus aureus.(True / False)
ii. Pharyngitis is the inflammation of the larynx. (True / False)
iii. Normal flora can not be pathogens in their usual anatomic location.(True / False)
iv. Keratitis is an infection of the cornea.(True / False)
v. Helicobacter pylori can spread through contaminated water and food. (True / False)
vi. The yeast, Candida albicans, is also a member of the normal flora of the skin.(True / False)
(b): Choose the correct option. (4 Marks)
1. ___________ are deeper infections of hair follicles.
a. folliculitis b.carbuncle c.impetigo d. cellulitis
2. S. epidermidis is to novobiocin.
a. Sensitive b. Resistant c. both (a) and (b) d. none
3. Brucella mode of transmission is __________.
a. meat b. unpasteurized milk c.egg d. flour
4. The classification of bacteria is based on various criteria such as____________.
a. Cell wall b.spores c.oxygen d.All
(c): Fill in the blanks. (4 Marks)
i. Styes are caused by ____________.
ii. ________________ is a superficial cutaneous infection .
iii. The term Nosocomial means______________ .
iv. Fibrinogen is an enzyme that causes ______ to clot by activating prothrombin to form thrombin.
Q. 2: Write a detailed note on post-operative infections? (14 Marks)
Q. 3: Write a note on the pathogenesis of Staphylococcus aureus? (14 Marks)
Q. 4: Write a note on infections of the upper respiratory tract? (14 Marks)
Q. 5: What is Normal flora? Write a note on the normal flora of different body parts of humans? (14 Marks)
Q. 6: Write a detailed note on ear infections? (14 Marks)
Q. 7: Explain nosocomial infections in detail? Write preventive measures for control of nosocomial infections?
Q. 8: Write a note on infections of the cardiovascular system of humans? (14 Marks)