medical MCQs – Page 103

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

2041. Physical sterilization was discovered by__________________?
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A. Robert Koch

B. Alexander flemings

C. John Hunter

D. Joeph Lister
2042. Dental Plaque adheres to tooth surface by________________?
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A. Bacteria

B. Epithelial cells

C. Dextran

D. Sucrose

2043. One of the following statement about statements about sterilization is not true_______________?
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A. Liquid paraffin ? Dry heat

B. Glass syringes ? Boiling at 169C for 60 min

C. Vaccines ? Ethylene oxide

D. Flash pasteurization of milk ? 72 C for 15 seconds, followed quickly by rapid cooling to 13C for lower

2044. A 6 year old boy comes with abdominal pain, vomiting after consuming mild products within 6 hours. The most likely organism responsible is______________?
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A. Staph. aureus

B. B.Cereus

C. Clostridium botulinum

D. Salmonella

2045. Subacute bacterial endocarditis is caused by_____________?
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A. Streptococcus viridans

B. Nisseria

C. Staphylococcus aureus

D. Haemolytic streptococci

2046. Anaphylaxis refers to the________________?
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A. Severe reaction following the injection of protein solution in a sensitized individual

B. Severe reaction resulting from sensitivity to common allergens

C. Severe reaction following primary injection of Protein solutions

D. State of immunity developed by repeated injections of any foreign substance

2047. Actinomycosis is caused by______________?
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A. Retrovirus

B. Fungus

C. Acid fast, non-motile bacillus

D. Anaerobic, gram positive, non-acid fast bacteria.
2048. Endoscopes are sterilized by using_______________?
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A. Cidex

B. Autoclaving

C. Gamma radiation

D. Boiling
2049. Bacterial spores are destroyed by_______________?
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A. Boiling at 100C

B. Pasteurisation

C. Disinfection by hypochlorite solution

D. Autoclave
2050. Hydatid cyst is__________________?
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A. Congenital

B. Fungal

C. Parasitic in nature

D. Viral

2051. parasitic inflammation would show predominantly____________________?
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A. Neutrophilis

B. Lymphocytes

C. Eosinophils

D. Basophils

2052. Function of Ig A is________________?
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A. Acts as a mucosal barrier for infection

B. Circulating antibody

C. Kills virus infected cells

D. Activates macrophages

2053. A diabetic patient developed cellulitis due to staphylococcus aureus, which was found to be Methicillin resistant on the antibiotic sensitivity testing. All of the following antibiotics will be appropriate EXCEPT________________?
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A. Teichoplanin

B. Imipenem

C. Vancomycin

D. Linezolid

2054. The optimal time and temperature required for sterilization in an autoclave is___________________?
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A. 121F x 15 mts. x 15 lbs pr.

B. 121F x 15 sec. x 15 lbs pr.

C. 121C 15 mts. x 15 lbs pr.

D. 140C x 2 hrs. x 10 lbs pr.

2055. Dorsets egg medium is used for cultivation of______________?
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A. Streptococcus

B. Mycobacterium

C. Staphylococcus

D. Gonococcus

2056. The medium of choice for growing most fungi is_______________?
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A. Sabourauds agar

B. Tissue culture

C. Thioglycollate medium

D. Blood agar

2057. Immunoglobin, Which is produced first by the fetus in response to infection_______________?
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A. IgM

B. IgG

C. IgA

D. IgD

2058. Virus infected cell is killed by________________?
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A. Autolysis

B. Neutrophils

C. Interferons

D. Macrophages

2059. Pasteur developed the vaccine for_______________?
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A. Anthrax

B. Cholera

C. All of the above

D. Rabies

2060. An example of naturally acquired passive immunity is__________________?
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A. Immune blood transfusion

B. Hepatitis vaccination

C. Gamma globulin injection

D. Placental transfer of antibodies