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Leptospirosis
See all quizzes of Leptospirosis here:
1 Which of the following is Spirochaetale ?
A. Leptospira
B. Borrelia
C. Treponema
D. All of the above
2 Which of the following about Leptospires is false ?
A. Coiled, thin, highly motile organisms with hooked ends
B. Stain poorly
C. Can be seen by dark-field microscopic examination
D. None of the above
3 The most important reservoir of Leptospires is ?
A. Rats
B. Cat
C. Fish
D. Birds
4 Leptospires infect humans usually through ?
A. Intact skin
B. Nails
C. Conjunctival mucosa
D. Hair follicle
5 The incubation period of leptospirosis is in the range of ?
A. 2 to 20 days
B. 2 to 30 days
C. 2 to 40 days
D. 2 to 50 days
6 In the host, Leptospires persist in ?
A. Renal tubules
B. Hepatic ducts
C. Intestinal flora
D. Saliva
7 Transmission of leptospires is rare through ?
A. Direct contact with urine
B. Direct contact with blood
C. Direct contact with tissue
D. Human-to-human transmission
8 Occupational groups at high risk of leptospirosis are all except ?
A. Veterinarians
B. Slaughterhouse workers
C. Sewage workers
D. Medical Laboratory technicians
9 All forms of leptospires damage ?
A. Epidermis
B. Oral mucosa
C. Wall of small blood vessels
D. Urinary epithelium
10 In kidney, leptospires causes ?
A. Interstitial nephritis
B. Glomerulonephritis
C. Perinephritis
D. All of the above
11 The organ invariably involved in leptospirosis is ?
A. Eye
B. Kidney
C. Liver
D. Pancreas
12 Even when antibodies are formed, leptospires persist for weeks /
months at all sites in host except ?
A. Eye
B. Proximal renal tubules
C. Brain
D. Muscle
13 Which of the following is conspicuous during immune phase of
leptospirosis ?
A. Jarisch-Herxheimer reaction
B. Hemolytic anemia
C. Aseptic meningitis
D. Peripheral neuropathy
14 Severe Leptospirosis (Weil’s Syndrome) is characterized by ?
A. Jaundice
B. Renal dysfunction
C. Hemorrhagic diathesis
D. All of the above
15 The most common clinical finding in leptospirosis is ?
A. Fever with conjunctival suffusion
B. Muscle tenderness
C. Lymphadenopathy
D. Skin rash
16 Test that helps to differentiate leptospirosis from viral hepatitis
is ?
A. Serum bilirubin
B. Serum alkaline phosphatase
C. Serum creatine phosphokinase
D. Serum lactic dehydrogenase
17 Temperature-pulse dissociation (relative bradycardia) occurs
in ?
A. Typhoid fever
B. Brucellosis
C. Leptospirosis
D. All of the above
18 Most common radiographic finding in severe leptospirosis is ?
A. Pleural effusion
B. Patchy alveolar pattern
C. Hilar lymphadenopathy
D. All of the above
19 Radiographic abnormalities in severe leptospirosis most often
affect ?
A. Lower lobes
B. Upper lobes
C. Middle lobes
D. All of the above
20 In leptospirosis, antibodies are generally detectable by ?
A. First week of illness
B. Second week of illness
C. Third week of illness
D. Fourth week of illness
21 Tests with diagnostic value in leptospirosis include ?
A. Microscopic agglutination test (MAT)
B. ELISA
C. Indirect hemagglutination test
D. All of the above
22 For isolation of leptospires from body fluids or tissues, which
medium is useful ?
A. Ellinghausen-McCullough-Johnson-Harris (EMJH) medium
B. Fletcher medium
C. Korthoff medium
D. All of the above
23 Leptospires do not remain viable in anticoagulated blood
after ?
A. 11 days
B. 17 days
C. 24 days
D. 27 days
24 Which of the following illness has a strong similarity in
epidemiology and clinical presentation with leptospirosis ?
A. Malaria
B. Viral hepatitis
C. Dengue
D. Hantavirus infection
25 Which of the following drugs is not effective in severe cases of
leptospirosis ?
A. IV penicillin G
B. Tetracycline
C. Erythromycin
D. Cotrimoxazole
26 Drug indicated for chemoprophylaxis against leptospirosis
is ?
A. Doxycycline
B. Erythromycin
C. Cephalosporin
D. Ampicillin
27 Accentuated petechiae in body folds (Pastia’s lines) is
characteristic of ?
A. Scarlet fever
B. Kawasaki disease
C. Streptococcal toxic shock syndrome
D. Staphylococcal toxic shock syndrome
