The Ig found in exocrine secretions is_____________?
A. IgG
B. IgD
C. IgM
D. IgA
Medical Mcqs
The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________?
The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________?
A. Lysosomes
B. Proteolytic enzymes
C. Lymphotoxins
D. Vasoactive mediators
Dark ground microscopy is useful to identify______________?
Dark ground microscopy is useful to identify______________?
A. Mycoplasma
B. Chlamydiae
C. Rickettsiae
D. Spirochaetes
The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?
The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?
A. 3 minutes
B. 15 minutes
C. 30 minutes
D. 60 minutes
The best sterilization method for a hand-piece is________________?
The best sterilization method for a hand-piece is________________?
A. Ethylene oxide gas
B. dry heat
C. chemical vapour
D. All of the above
Example of immune complex hyper-sensitivity reaction is______________?
Example of immune complex hyper-sensitivity reaction is______________?
A. Atopic allergy
B. Serum sickness
C. Transfusion reaction
D. Contact dermatitis
The chemotactic factor is______________?
The chemotactic factor is______________?
A. C2a
B. C3b
C. C4a
D. C5a
Steam under pressure in used in ________ sterilization?
Steam under pressure in used in ________ sterilization?
A. Pasteurization
B. Autoclave
C. Kochs sterilizer
D. hot air oven
The predominant immunoglobulin in saliva is_______________?
The predominant immunoglobulin in saliva is_______________?
A. IgA
B. IgD
C. IgE
D. IgG
All are true about legionella pneumophilia except______________?
All are true about legionella pneumophilia except______________?
A. Aquatic bodies are main habitat
B. It can replicate in amoeba
C. Urine test is a reliable method
D. Person to person transmission