Quiz Answers
- Type I hypersensitivity includes all of the following except:
- a. Autoimmune hemolytic anemia ✅
- b. Anaphylaxis
- c. Extrinsic asthma
- d. Hay fever
- A positive tuberculin test is an example of:
- a. Type I hypersensitivity
- b. Type II hypersensitivity
- c. Type III hypersensitivity
- d. Type IV hypersensitivity ✅
- Application of skin graft for the second time from the same donor will result in:
- a. First set rejection
- b. Second set rejection ✅
- c. Both
- d. None
- Transplantation between members with the same genetic constitution is known as:
- a. Autograft
- b. Isograft ✅
- c. Allograft
- d. Xenograft
- All of the following are live-attenuated vaccines except:
- a. MMR
- b. Yellow fever 17D vaccine
- c. Salk polio vaccine ✅
- d. Sabin polio vaccine
- Amphitrichous flagella means
- a. Flagella all-round the cell
- b. Flagella at both ends ✅
- c. Flagella at one end
- d. Flagella in tufts
- When Flagella is present all around the cell, it is called
- a. Amphitrichous
- b. Monotrichous
- c. Peritrichous ✅
- d. Lopotrichous
- India ink is used to demonstrate the following part of bacteria
- a. Cell wall
- b. Nucleus
- c. Capsule ✅
- d. Flagella
- Reflected light is used in
- a. Light microscope
- b. Phase contrast microscope
- c. Darkfield microscope ✅
- d. Electron microscope
- Bacteria that grow between 25 to 40°C are
- a. Capnophilic
- b. Psychrophilic
- c. Thermophilic
- d. Mesophilic ✅
- Shape of cocci
- a. Rod
- b. Spherical ✅
- c. Comma
- d. Spiral
- Best way of sterilizing disposable plastic syringes is:
- a. UV rays
- b. Autoclave
- c. Gamma rays ✅
- d. Hot air oven
- The most suitable disinfectant for decontamination of HIV-contaminated endoscope is (MAH19)
- a. 1% sodium hypochlorite
- b. 2% glutaraldehyde ✅
- c. 5% phenol
- d. 70% ethanol
- Flexible fiber optic endoscopes are sterilized by
- a. Autoclave
- b. Cetrimide
- c. 2% glutaraldehyde ✅
- d. Gamma-radiation
- Which of the following organisms can survive pasteurization by the Holder method?
- a. Mycobacterium
- b. Brucella
- c. Coxiella burnetii ✅
- d. Salmonella
- Temperature and duration for the flash process of Pasteurization
- a. 77°C for 20 seconds ✅
- b. 100°C for 20 seconds
- c. 63°C for 20 seconds
- d. 63°C for 30 minutes
- Sterilization of heat-labile media is done by
- a. Filtration
- b. Pasteurization
- c. Autoclaving
- d. Tyndalization ✅
- Immunoglobulin that is inactivated at high temperature
- a. IgG
- b. IgA
- c. IgM
- d. IgE ✅
- Immunoglobulins are
- a. Glycolipids
- b. Glycoproteins ✅
- c. Polypeptides
- d. Proteoglycans
- Exotoxins are usually
- a. Protein ✅
- b. Heat labile
- c. More antigenic
- d. Non-enzymatic
- True about exotoxins
- a. Produced only by gram-positive bacteria
- b. Neutralized by antitoxin ✅
- c. Less potent than endotoxin
- d. Pyrogenic
- The function of an adjuvant in a vaccine is to enhance its:
- a. Distribution
- b. Immunogenicity ✅
- c. Absorption
- d. Shelf life
- The Immunity resulting in the infant, as a result of immunization of a pregnant woman with tetanus toxoid, is called
- a. Innate immunity
- b. Natural active immunity
- c. Artificial active immunity
- d. Natural passive immunity ✅
- Anti-D given to an Rh-negative pregnant woman with an Rh-positive fetus, before delivery, is an example of
- a. Artificial active immunity
- b. Artificial passive immunity ✅
- c. Natural passive immunity
- d. Adoptive immunity
- Gram-positive bacteria which is usually sensitive to penicillin is
- a. Staphylococcus aureus
- b. Enterococcus faecalis
- c. Streptococcus pyogenes ✅
- d. Staphylococcus epidermidis
- Streptococcus causing neonatal meningitis
- a. Group-A
- b. Group-B ✅
- c. Group-C
- d. Group-D
- Which of the following gram-positive bacteria is responsible for food poisoning?
- a. Mycoplasmas
- b. Pseudomonas
- c. Clostridia ✅
- d. All of the above
- Methicillin-resistant bacteria are
- a. Streptococci
- b. Pseudomonas
- c. Haemophilus
- d. Staphylococci ✅
- The organism causing UTI in sexually active women
- a. Staphylococcus aureus
- b. Staphylococcus epidermidis
- c. Staphylococcus saprophyticus ✅
- d. Streptococcus viridians
- Antibiotic used in Toxic shock syndrome
- a. Vancomycin
- b. Cephalosporins
- c. Streptomycin
- d. Clindamycin ✅
- Grave’s disease belongs to
- a. Type I hypersensitivity
- b. Type II hypersensitivity ✅
- c. Type III hypersensitivity
- d. Type IV hypersensitivity
- Type of hypersensitivity involved in Rh incompatibility
- a. Type I hypersensitivity
- b. Type II hypersensitivity ✅
- c. Type III hypersensitivity
- d. Type IV hypersensitivity
- Chemically, an antigen may be
- a. Lipid
- b. Polysaccharide
- c. Protein
- d. Any of the above ✅
- Example of cell-mediated hypersensitivity
- a. Transfusion reactions
- b. Arthus reactions
- c. Type II lepra reaction
- d. Tuberculin test ✅
- Tuberculin test is an example of
- a. Type I hypersensitivity
- b. Type II hypersensitivity
- c. Type III hypersensitivity
- d. Type IV hypersensitivity ✅
- Organism that has considerable resistance to antiseptics, disinfectants, and antibiotics
- a. E. coli ✅
- b. Pseudomonas
- c. Staphylococci
- d. Streptococci
- Endocarditis in a patient with colon cancer is caused by
- a. Staphylococcus epidermidis
- b. Streptococcus bovis ✅
- c. Streptococcus sanguis
- d. Streptococcus mutans
- Which is a lactose fermenter?
- a. Pseudomonas
- b. Salmonella
- c. Klebsiella ✅
- d. Shigella
- Rice water stool is associated with? DNB 2015
- a. Cholera ✅
- b. Bacillary dysentery
- c. Salmonella infection
- d. Pseudomembranous colitis
- Bacteria associated with dental caries
- a. Streptococcus mutans ✅
- b. Streptococcus pyogenes
- c. Streptococcus faecalis
- d. Streptococcus agalactiae
- Dose of human tetanus Ig for post-exposure prophylaxis
- a. 250-500 units ✅
- b. 500-750 units
- c. 750-1000 units
- d. 1000-1200 units
- Most important cause of traveler’s diarrhea is
- a. Enterotoxigenic Escherichia coli ✅
- b. Enteroinvasive E. coli
- c. Enterohemorrhagic E. coli
- d. Enteropathogenic E. coli
- Smallest virus is:
- a. Pox virus
- b. Herpes virus
- c. Parvo virus ✅
- d. Adeno virus
- Incubation period of measles
- a. 1-2 days
- b. 3-6 days
- c. 1-7 days
- d. 9-11 days ✅
- Dengue is caused by
- a. Alphavirus
- b. Bunyavirus
- c. Flavivirus ✅
- d. Hantavirus
- Yellow fever is caused by
- a. Flavivirus ✅
- b. Alphavirus
- c. Calcivirus
- d. Bunyavirus
- Infective period of Aedes mosquitoes in dengue
- a. 1-2 days
- b. 8-10 days
- c. Till next bite
- d. Till death ✅
- Scrub typhus is transmitted by:
- a. Louse
- b. Trombiculid mite
- c. Rat fles
- d. Soft tick
- Tinea pedis is caused by
- a. E floccosum
- b. T rubrum
- c. Microsporum ✅
- d. T schoenleinii
- Tinea pedis is seen among
- a. People of cold countries
- b. Those wearing socks and shoes ✅
- c. Those walking barefoot
- d. Hospitalized people
