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Multiple choice questions. Mycobacterium tuberculosis. The scientist who discovered M. tuberculosis was: A: Louis Pasteur B: Robert Koch C: Jean-Antoine Villemin D: Calmette and Guerin Correct answer: B. MDR TB: is defined as resistance to A: more than three anti tubercular drugs - PowerPoint PPT Presentation
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Multiple choice questions
Multiple choice questionsMycobacterium tuberculosisThe scientist who discovered M. tuberculosis was:A: Louis PasteurB: Robert KochC: Jean-Antoine VilleminD: Calmette and Guerin
Correct answer: BMDR TB: is defined as resistance toA: more than three anti tubercular drugsB: isoniazid and rifampin irrespective of resistance to any other drugC: INH, PZA and RifampicinD: fluoroquinolones and at least one of the three injectable second-line drugs used to treat TB
Correct answer: B
XDR TB is defined asA: MDR TB that also is resistant to fluoroquinolones and at least one of the three injectable second-line drugs used to treat TB (amikacin, kanamycin, or capreomycin)B: resistant to two most effective first-line therapeutic drugs, isoniazid and rifampin irrespective of resistance to any other drugC: MDR TB that is resistant to either one of the injectable second line drugs or second-line therapeutic fluoroquinolonesD: Strain resistant to more than one drug (excluding co resistance to INH and rif)
Correct answer: A
Tuberculosis is transmitted through:A: Infected waterB: Infected handsC: Infected bloodD: Infected air
Correct answer: DWhich of the following statements is incorrect:A: People who are exposed to TB may or may not develop TB infectionB: People with TB infection may or may not develop TB diseaseC: risk of developing TB disease is highest in first 2 years after infectionD: Every individual exposed to TB develops disease
Correct answer: DTubercular Granulomas are made up of: A: organized aggregates of immune cells that surround foci of infected tissuesB: Damaged tissue cells and bacilli onlyC: Fibrous and damaged tissue and bacilli onlyD: Necrotic tissue and damaged tissue and bacilli only
Correct answer: ACord growth seen on mycobacterial culture is characteristic of:A. Avirulent strainsB. Virulent strainsC. Saprophytic strainsD. Atypical mycobacteria
Correct answer: BWhich one of the following are constituent of Lowenstein Jensen media except:A. AgaroseB.Malachite greeC. Mineral saltsD. Asparagine
Correct answer: AFollowing are the first line antitubercular drugs except:A. isoniazidB. rifampin C. PASD. streptomycin
Correct answer: CWhich one of the following anti-tubercular drugs acts best in acidic pH:A. INHB. PyrazinamideC. StreptomycinD. Rifampicin
Correct answer: BMutations in katG gene of Mycobacterium tuberculosis are responsible for resistance to:A. INHB. RifampicinC. PyrazinamideD. Streptomycin
Correct Answer: AWhich of the following tests are banned for diagnosis of tuberculosis:A. CultureB. ELISAC. PCRD. LPA
Correct result: BWhich of the following statements is incorrect:A. Mycobacteria are obligate aerobes B. Increased CO2 tension enhances growth C. Can not grow in cell free mediaD. Doubling time of tubercle bacilli is about 18 hours.
Correct answer: COne word answer
Identify the stainZN stainIdentify the organismM. tuberculosisDescribe the morphologyAcid fast, Long slender, curved, bunch, beadedTrue/ FalseFor people with TB infection and no risk factors, the risk is about 5% in the first two yearsTFor people with TB infection and no risk factors, the risk is about 10% over a lifetimeTFor people with TB infection and diabetes, the risk is about 30% over a lifetimeTFor people with TB infection and HIV infection , the risk is about 7% to 10% over a lifetimeFWhich one of the following is a non cultivable mycobacteria:A. M. tuberculosisB. M. BovisC. M. lepraeD. M. avium intracellulare
Correct Answer: CWhich one of the following is a rapid grower mycobacteria:A. M. scrofulaceumB. M. kansasiiC. M. fortuitumD. M. avium intracellulare
Correct Answer: C
Buruli ulcer is caused by:A. M. tuberculosisB. M. ulceranceC. M. marinumD. M. chelonei
Correct answer: BSwimming pool granuloma is caused by:A. M. tuberculosisB. M. ulceranceC. M. marinumD. M. chelonei
Correct answer: c
Most common cause of disseminated opportunistic infection in AIDS patients in western world is:A. M. avium intracellulare complexB. Pneumocystis cariniiC. CryptosporidiumD. Zygomycetes
Correct answer: A
Gerhard Henrik Armauer Hansen,s contribution to Microbiology was; A. First identified M. leprae as the cause of leprosy in 1873B. First identified M. tuberculosis as a cause of TB in 1895C. First identified B. anthracis as a cause of Anthrax in 1872D. First identified that small pox is a contagious disease
Correct Answer: A
Which of the following description suits lepra bacilli best:A. acid-fast rod-shaped organism with parallel sides and rounded ends, mostly extracellular, often grouped together like bundles of cigarsB. acid-fast rod-shaped organism with parallel sides and rounded ends, chiefly in masses within the lepra cells (globi), often grouped together like bundles of cigars or arranged in a palisadeC. acid-fast rod-shaped organism with parallel sides and rounded ends, chiefly intracellular in Chinese letter formD. acid-fast rod-shaped organism, extracellular, Chinese letter form
Correct answer: BAn adult male is presenting with hypo-pigmented patches on forearm, partial loss of cutaneous sensations in affected areas, presence of thickened ulnar nerve and presence of AFB in nasal smears. Your diagnosis is:A. Cutaneous TuberculosisB. LeprosyC. Atypical mycobacteriosisD. Actinomycosis
Correct answer: B
A case of leprosy with good Cell mediated immunity usually presents as following form of disease:A. LepromatousB. TuberculoidC. indeterminateD. Borderline
Correct answer: BErythma nodosum leprosum as seen in patients of leprosy on treatment, is due to:A. Type I hypersensitivity reactionB. Type II hypersensitivity reactionC. Type III hypersensitivity reactionD. Type IV hypersensitivity reaction
Correct answer: C
Presence of sulfur granules in pus is pathognomonic of:A. Subcutaneous mycosisB. LeprosyC. ActinomycosisD. Cutaneous Tuberculosis
Correct Answer: CThere is a 30 year old male presenting with lumpy jaw, suppurative inflammation and formation of multiple abscesses and sinus tracts with discharge of pus containing sulfur granules. Most probable clinical diagnosis is; A. LeprosyB. ActinomycosisC. Subcutaneous mycosisD. Cutaneous TB
Correct Answer: B
There is a 30 year old male presenting with lumpy jaw, suppurative inflammation and formation of multiple abscesses and sinus tracts with discharge of pus containing sulfur granules. Following types of microscpic examinations can be ordered to confirm the diagnosis, except; A. Smear examination for Gram positive bacteriaB. Microscopic examination of Crush smear of granuleC. Smear examination for acid fast bacilliD. KOH mount
Correct answer: D
There is a 30 year old male presenting with lumpy jaw, suppurative inflammation and formation of multiple abscesses and sinus tracts with discharge of pus containing sulfur granules. Best therapy in this case will be:A. Antitubercular drugsB. AminoglycosidesC. PenicillinD. Co trimoxazole
Correct Answer: C
Which one of them is non acid fast:A. Mycobacterium tuberculosisB. NocardiaC. ActinomycesD. Mycobacterium leprosy
Correct Answer: C