(Single Best Answer) Question 1: Consider the following statements in respect of Helicobacter Pylori : 1. It is a gram positive, spiral-shaped bacterium. 2. It uses an adhesion molecule (BabA) to bind to the 'Lewis b' antigen on gastric epithelial cells 3. It produces 'urease' enzyme that helps to raise the pH around the bacterium 4. It exclusively colonises only 'gastric-type' epithelium.
Which of the above statements are correct ?
A) 1, 2 and 3 B) 1, 2 and 4 C) 2, 3 and 4 D) 1, 3 and 4 Answer (Select an option above to get the answer):
A) Incubation period in cholera is longer i.e. 2 to 5 days B) Frequent effortless purging C) Rice watery stools D) Fever, fast pulse and head ache Answer (Select an option above to get the answer):
A) It is caused by Clostridium perfringens B) Clostridium perfringens is a gram negative spore bearing bacillus C) Gas gangrene is characterized by severe local pain, crepitus and signs of toxemia D) High dose penicillin and aggressive debridement of affected tissue is the treatment of established infection Answer (Select an option above to get the answer):
(Single Best Answer) Question 6: All of the following methods are used for the diagnosis of HIV infection in a 2 month old child, except ?
A) DNA-PCR B) Viral culture C) HIV ELISA D) p24 antigen assay Answer (Select an option above to get the answer):
(Single Best Answer) Question 7: A 24 year old male presents to a STD clinic with a single, painless ulcer on external genitalia. The choice of laboratory test to look for the etiological agent would be ?
A) Scrappings from ulcer for culture on chocholate agar with antibiotic supplement B) Serology for detection of specific IgM antibodies C) Scrappings from ulcer for dark field microscopy D) Scarppings from ulcer for tissue culture Answer (Select an option above to get the answer):
A) Infant botulism is caused by ingestion of preformed toxin B) Clostridium botulinum A,B,C and F cause human disease C) The gene for botulinum toxin is encoded by a bacteriophage D) Clostridium baratti may cause botulism Answer (Select an option above to get the answer):
A) Proteus vulgaris B) Klebsiella pneumoniae C) Staphylococcus aureus D) Escherichia coli Answer (Select an option above to get the answer):
(Single Best Answer) Question 10: A adult male patient presented in the OPD with complaints of cough and fever for 3 months and haemoptysis off and on. His sputum was positive for AFB. On probing it was found that he had already received treatment with RHZE for 3 weeks from a nearby hospital and discontinued. How will you categorize and manage the patient ?
A) Category III, start 2 (RHZ)3 B) Category II, start 2 (RHZE)3 C) Category I, start 2 (RHZE)3 D) Category II, start 2 (RHZES)3 Answer (Select an option above to get the answer):