A. Most common cause is B. Petrussis
B. It may occur in children and young adult after vaccination
C. Bacteria culture from nasopharyngeal swab is the definitive diagnosis
D. Presence of antibodies in serum in diagnostic of the disease
Related Mcqs:
- Culture medium used for Bordatella pertussis is_________________?
A. Wilson Blair medium
B. Bile broth
C. Bordet Gengou medium
D. Robertson cooked meat medium - Leptospirosis, all are true except______________?
A. Faeces & urine of rodents is the cause
B. Onset of IgM in 2 days
C. Incubation period is 10 days
D. It is sensitive to penicillin - 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 - True about HIV are all except______________?
A. DNA virus
B. Attacks CD4 cells
C. Macrophages are the reservoir
D. Decrease CD4 count in late stages - True about denaturation of protein is all except______________?
A. Unfolding occurs
B. Disruption of secondary structure occurs
C. Sequence of amino acids remain the same
D. Biological activity is retained - All of the following are true about functions of dental pulp except______________?
A. Formation of dentin
B. Nerve supply to dentin
C. Sends impulses to CNS
D. Nerve supply to enamel through fibres - All of the following statements about the differences between self-polymerizing acrylic resins and heat-cured resins are true EXCEPT______________?
A. The former have a lower molecular weight
B. The former have higher residual monomer content
C. The former are more porous
D. The former have greater transverse strength - About polymerization shrinkage of composite all are true, except______________?
A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
B. Polymerization shrinkage is high if within the enamel margins
C. Acid etching and priming will decrease polymerization shrinkage
D. Microleakage can occur because of polymerization shrinkage - True about aminoglycoside is all except______________?
A. Are bacteriostatic
B. Distributed only extracellularly
C. Excreted unchanged in urine
D. Teratogenic - Caries, all are true except______________?
A. Lactobacillus is main acusative organism in plaque
B. Smooth surface caries occur due to streptococcus mutans
C. Pit and Fissure caries can be prevented by using pit and tissue sealants
D. Fluorides help in reducing caries incidence
