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.
3901 to 3950 MCQs for Lab Technician and Technologist Exam Preparation
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Questions 3901 to 3950
Primary immune response the correct statement is:
- a) Involves IgG
- b) Antibody producing cells. Memory B cell
- c) No lag period
- d) Slow and sluggish
Which of the following infectious agents can be transmitted through blood transfusion?
- a) HIV
- b) Treponema pallidum
- c) Toxoplasma gondii
- d) All of the above
Which one of the following is post streptococcal sequelae?
- a) Acute rheumatic fever
- b) Cellulitis
- c) Pharyngitis
- d) Impetigo
A positive tuberculin test is indicated by an area of induration of:
- a) <5 mm in diameter
- b) 6-9 mm in diameter
- c) > 10 mm in diameter
- d) No induration
Diagnostic test used for typhoid fever
- a) Blood culture
- b) Dick Test
- c) Shick Test
- d) Widal test
Diagnostic test used for diphtheria
- a) Blood culture
- b) Dick Test
- c) Shick test
- d) Widal test
Diagnostic test used for TB
- a) Mantoux test
- b) Dick Test
- c) Shick test
- d) Widal test
Diagnostic test used for scarlet fever
- a) Mantoux test
- b) Dick Test
- c) Shick test
- d) Widal test
Diagnostic test used for typhus fever
- a) Mantoux test
- b) Dick Test
- c) Shick test
- d) Weil Felix
Route of injecting Shick test toxin / purified protein derivative (Mantoux test) is:
- a) Intra vascular
- b) Intra dermal
- c) Intra muscular
- d) Subcutaneous
Site for injecting Shick test toxin / purified protein derivative (Mantoux test) is:
- a) Right upper arm
- b) Left upper arm
- c) Left forearm
- d) Right forearm
Most accurate method of diagnosis of Helicobacter pylori is:
- a) Culture
- b) Biopsy urease test
- c) Histopathology
- d) Urea breath test
All of the following viruses are transmitted by respiratory route except:
- a) Influenza virus
- b) Rota virus
- c) Respiratory syncytial virus
- d) Rhinovirus
Acid fast staining is used to detect:
- a) Mycobacterium TB
- b) Clostridium tetani
- c) HIV/AIDS
- d) Meningococci
During the window period of patient with AIDS, best diagnostic test is:
- a) ELISA
- b) Western Blot
- c) Rapid test
- d) RT-PCR
Best indicator of HIV prognosis
- a) CD4 T cell count
- b) CD8 T cell count
- c) HIV RNA
- d) ELISA
Most effective mode of transmission of HIV
- a) Sexual
- b) Blood product
- c) Needle/syringe
- d) Mother to fetus
Most common malignancy in AIDS is:
- a) Kaposi sarcoma
- b) B-cell lymphoma
- c) Leukemia
- d) Burkitt’s lymphoma
Food poison is caused by:
- a) Clostridium perfringens
- b) Clostridium botulinum
- c) Corynebacterium diphtheriae
- d) Clostridium tetani
Which of the following is used for sterilization of cystoscopes, endoscopes, and bronchoscopes?
- a) Gluteraldehyde
- b) Ethanol
- c) Methanol
- d) Ethylene oxide
Method of sterilization used for culture media is:
- a) Autoclave
- b) Hot air oven
- c) Pasteurization
- d) None of the above
Which of the following is LIVE ATTENUATED VACCINE?
- a) BCG vaccine
- b) Rabies vaccine
- c) Diphtheria toxoid
- d) Tetanus toxoid
Which of the following single dose is sufficient for immunization:
- a) Live attenuated vaccine
- b) Killed vaccine
- c) Toxoids
- d) None of the above
The method of killing all microorganisms including their spores is known as:
- a) Sterilization
- b) Disinfection
- c) Incineration
- d) Lysis
The method of reducing the number of pathogens from any article, surface, or medium is called:
- a) Sterilization
- b) Disinfection
- c) Incineration
- d) Lysis
The causative agent of Tuberculosis (T.B.) is:
- a) Mycobacterium tuberculosis
- b) Mycobacterium leprae
- c) Treponema pallidum
- d) Borrelia species
The causative agent of Syphilis is:
- a) Mycobacterium tuberculosis
- b) Mycobacterium leprae
- c) Treponema pallidum
- d) Borrelia species
VDRL test is used for the diagnosis of:
- a) Syphilis
- b) Tuberculosis
- c) Pneumonia
- d) AIDS
Which of the following is a moist heat method of sterilization?
- a) Boiling
- b) Autoclaving
- c) Hot air oven
- d) Both “Boiling” & “Autoclaving”
Temperature range used for autoclaving is:
- a) 100°C for 10 min
- b) 100°C for 30 min
- c) 121°C for 15 min
- d) 121°C for 30 min
ELISA is used for the diagnosis of:
- a) AIDS
- b) Night blindness
- c) Sickle cell anaemia
- d) All of the above
Name the first organic acid produced by microbial fermentation:
- a) Acetic acid
- b) Lactic acid
- c) Butyric acid
- d) None of the above
The most common viral cause of gastroenteritis:
- a) Rotavirus
- b) Norwalk virus
- c) Adenovirus
- d) Hepadnavirus
Perinatal Hepatitis B transmission is maximum in:
- a) 1st trimester
- b) 2nd trimester
- c) 3rd trimester
- d) During delivery
Which Hepatitis virus is associated with highest mortality in pregnancy?
- a) Hepatitis A
- b) Hepatitis B
- c) Hepatitis C
- d) Hepatitis E
Hepatitis virus that spreads by fecal-oral route:
- a) Hepatitis A
- b) Hepatitis B
- c) Hepatitis C
- d) Hepatitis D
Acute hepatitis B infection is best diagnosed by:
- a) HBsAg
- b) HBeAg
- c) IgM Anti HBc antibody
- d) HBcAg
Which parameter is not included in HAI surveillance?
- a) CA-UTI (catheter associated urinary tract infection)
- b) CLABSI (central line associated bloodstream infection)
- c) VAP (ventilator associated pneumonia)
- d) Open wound infections
Hand rub should not be used in which condition?
- a) Before touching patient
- b) After touching patient
- c) After touching patient’s surrounding
- d) Hands are visibly soiled
How many moments of hand hygiene have been laid down by WHO?
- a) 5
- b) 6
- c) 7
- d) 8
Which antibody crosses placenta?
- a) IgA
- b) IgG
- c) IgE
- d) IgM
Which is an example of surface Ig?
- a) IgA
- b) IgG
- c) IgE
- d) IgM
Type I hypersensitivity is mediated by which of the following immunoglobulins?
- a) IgA
- b) IgG
- c) IgM
- d) IgE
Wheal and flare is which type of hypersensitivity reaction:
- a) Type I
- b) Type II
- c) Type IV
- d) Type V
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 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
Answer Key Summary
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.
