5000 Plus MCQs for Lab Technician and Technologists are designed to test the knowledge and proficiency of laboratory professionals who work in the field of clinical laboratory science. These questions cover a wide range of topics related to laboratory science, including anatomy, physiology, microbiology, chemistry, and hematology.
3001 to 3050 MCQs for Lab Technician and Technologist Exam Preparation
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Questions 3001 to 3050
- All are true about bordetella pertussis except______?
- Most common cause is B. Petrussis
- It may occur in children and young adult after vaccination
- Bacteria culture from nasopharyngeal swab is the definitive diagnosis
- Presence of antibodies in serum in diagnostic of the disease ✔️
- A full course of immunization against. Telanus with 3 doses to Tetanus toxoid, confers immunity for how many years ?
- 5
- 10 ✔️
- 15
- 20
- Salivary peroxidise system is known to be effective agianst______?
- Actinomyces viscosus
- Lactobacillus acidophilus
- Streptococcus mutans ✔️
- Veilonella parvula
- About Psedomonas. All are true except_____?
- Strick aerobes
- Can grow in disinfectants in hospital
- Infection is mostly due to endogenous source ✔️
- Most common organism is burn patient
- Lepromin test is useful for_______?
- Diagnosis
- Prognosis ✔️
- Treatment plan
- Epidemiology
- All are true about wide test except_______?
- Base lines differ depending on the endemicity of the disease
- O antibodies last longer and hence is not indicative of recent infection ✔️
- H antigen cannot differentiate between subtypes
- High titre value in a single widal test is not confirmative
- Leptospirosis, all are true except_______?
- Faeces & urine of rodents is the cause
- Onset of IgM in 2 days ✔️
- Incubation period is 10 days
- It is sensitive to penicillin
- Pathogenesis of diphtheria is attributed to_______?
- Invasion
- Endotoxin
- Exotoxin ✔️
- Capsule
- Following are the characteristics of Vincent’s angina EXCEPT______?
- Ulcerative gingivostomatitis
- Caused due to malnutrition
- A symbiotic infection
- Caused by leptospira interrogans ✔️
- ASO (Antistreptolysin 0) test is uesd for the diagnosis of______?
- Rheumatoid arthritis
- Typhoid fever
- Rheumatie fever ✔️
- Rickettsial fever
- Group A carbohydrate of Str. pyogenes cross reacts with human______?
- Synovial fluid
- Myocardium
- Cardiac valves ✔️
- Vascular intima
- The most frequently encountered clostridia species in gas gangrene is_______?
- Clostridium botulinum
- Clostridium welchii ✔️
- Clostridium tetani
- Clostridium difficile
- In small intestine, cholera toxin acts by_______?
- ADP – ribosylation of the G regulatory protein ✔️
- Inhibition of adenyl cyclase
- Activation of GTPase
- Active absorption of NaCI
- Phospholipid used to investigate syphilis by the reagin test is______?
- Cardiolipin ✔️
- Plasminogen
- Palmityl lecithin
- Serine
- Staphylococcal food poisoning includes the following features_____?
- Incubation period of 24 hours
- Requires immediate antibiotics
- Common with dairy products ✔️
- Heat labile enterotoxin
- Fimbriae are demonstrated by __?
- Culture
- Gram stain
- Biochemical reaction
- Haemagglutination test ✔️
- The mechanism of genetic transfer where a phage serves as a vehicle is______?
- Transduction
- Translation
- Lysogeny ✔️
- Conjugation
- cAMP reaction is shown by which streptococci ?
- Group A
- Group B ✔️
- Group C
- Group D
- Cough plate method is used to identify____?
- Y. pestis
- Pertussis ✔️
- Mycoplasma
- M-Tuberculosis
- Test for differentiating virulent form non-virulent tubercular bacilli____?
- Aryl sulphatase test
- Niacin test
- Neutral red test ✔️
- Catalase peroxidase test
- The most common pathogens responsible for nosocomial pneumonias in the ICU are_____?
- Gram positive organisms
- Gram negative organisms ✔️
- Mycoplasma
- Virus infections
- Negative staining is used to demonstrate_______?
- Bacterial spore
- Bacterial Flagella
- Bacterial capsule
- Bacterial fimbriae ✔️
- Borrelia vincenti is always associated with______?
- Spirochaetes
- Fusiform bacilli ✔️
- Treponema vincenti
- None of the above
- Bacteria acquire characteristics by all the following except_____?
- Through plasmids
- Incorporating part of host DNA ✔️
- Through bacteriophages
- Through conjugation
- All of the following organisms are known to survive intracellularly except_____?
- Neisseria meningitides
- Salmonella typhi
- Streptococcus pyogenes ✔️
- Legionella pneumophila
- Chlamydia causes all of the following except_______?
- Trachoma
- Non-gonococcal urethritis
- Pneumonia
- Parotitis ✔️
- Lancefields classification of B hemolytic streptococcus is based on______?
- M Protein
- Polysaccharide C antigen ✔️
- Type of lipid in cell membrane
- Physiological properties
- Leprosy bacilli are transmitted from person to person by all except_____?
- Dischange from nasal mucosa
- From open sore
- Through intact skin
- Through breast milk ✔️
- Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by____?
- Niacin test ✔️
- AFB staining
- Pas staining
- None of the above
- In T.B cell mediated immunity is by_______?
- CD 4* ✔️
- CD 8*
- B – lymphocytes
- None of the above
- Nagglers reaction detects______?
- Coagulase
- Hyaluronidase
- Lecithinase ✔️
- None of the above
- Drumstick appearance is seen in_______?
- Cl. tetani ✔️
- Cl. tetanomorphum
- Cl. sphenoids
- All of the above
- Q fever is caused by_____?
- Rickettsia tsutsugamushi
- R. prowozekii
- R. quintana
- C. burnetti ✔️
- Actinomycetes is______?
- Gram positive bacteria ✔️
- Gram negative bacteria
- Fungus
- A yeast like form
- True about VDRL test______?
- Non – Specific
- Slide flocculation test
- Best followed for drug therapy
- All of the above ✔️
- Staphylococcus does not causes_____?
- Osteomyelitis
- Abscess
- Scarlet fever ✔️
- Pneumonia
- Vibrio cholera was discovered by______?
- Koch ✔️
- Medintoff
- John snow
- Virchow
- Virulence of Gonococcus is due to______?
- Pili ✔️
- Cell Membrane
- Its intracellular location
- Cytolytic enzymes
- Culture medium for corynebacterium diphtheria_______?
- Loefflers serum slope ✔️
- Mc Conkey
- Saborauds agar
- Lowenstein Jensen Medium
- humb print appearance in culture film smear is seen______?
- Bacillus anthracis
- Brucella species
- Bordetelia pertussis ✔️
- Clostridium weichii
- Widal test is specific for____?
- Plague
- Leprosy
- Pemhigoid
- Typhoid ✔️
- Granules in the corynebacterium diphtheria are called by following names, except_____?
- Metachromatic granules
- Refractile granules ✔️
- Babes Ernst granules
- Voluntin granules
- Tuberculin test screens for____?
- Hemoral immunity
- Cell mediated immunity ✔️
- Complement function
- Phagocyte dysfunction
- Which of the following have the capability to produce extra cellular polysaccharides_____?
- Strep. Mutans ✔️
- Strep. pyogenes
- Peptostreptococcus
- Enterococcus
- The single most important laboratory test for determining the virulence of staphylococci is____?
- Mannitol fermentation
- Hemolysis of sheep erythrocytes
- Detection of coagulase ✔️
- The catalase test
- Which of the following characteristics of bacteria is not true?
- Unicellular
- Free living
- Having either DNA or RNA ✔️
- Cell wall containing muramic acid
- Salmonella typhi can be isolated at different times from______?
- Feaces
- Blood
- Urine
- All of the above ✔️
- The temperature required for cultivating mycobacterium_______?
- 2 degree
- 0 degree
- 27 degrees
- 37 degrees ✔️
- Silver impregnation method of staining is useful to demonstrate_____?
- Bacterial flagella
- Spirochetes
- Both of the above ✔️
- None of the above
- Gram -ve bacteria stain during gram staining______?
- Blue color
- Red color ✔️
- Green
- Colorless
The questions are typically designed to assess the technical skills and knowledge required for the laboratory profession, including the ability to analyze laboratory test results, perform laboratory procedures, and maintain laboratory equipment.
To prepare for these MCQs, candidates should have a thorough understanding of the key concepts and principles of laboratory science. They should also be familiar with common laboratory equipment and procedures, as well as laboratory safety protocols.
Candidates may also benefit from studying specific laboratory science textbooks or taking online courses that cover the material tested in the MCQs. Additionally, practicing sample MCQs and reviewing the answers can help candidates identify areas where they may need to improve their knowledge or skills.
Overall, the MCQs for lab technologists are designed to be challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in the field of laboratory science.
Possible References Used
The answer to the question no 3003 is incorrect. The correct answer is Streptococcus mutans, not Lactobacillus acidophilus.
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