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MCQ’s Chapter 18 (Lab)

Some of Common Questions and Answers for Laboratory Technicians and Technologists.

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Questions 851 to 900

  1. ASO test is used to detect bacterial infection.
    • Staphylococcus
    • Streptococcus
    • Pneumococcus
    • Salmonella
  2. Solution used for the preparation of grease free coverslip (28-6)
    • KOH solution
    • Formalin and ether
    • 95% ethanol and ether
    • 70% ethanol and ether
  3. For detecting the hemoglobinopathies by electrophoresis we use
    • clotted blood
    • plasma
    • red cell
    • lysed red cell
  4. Serum complements can be inactivated at a temperature of
    • 56°C for 15 mts
    • 56°C for 30 mts
    • 37°C for 20 mts
    • 37°C for 30 mts
  5. Bombay blood group can be detected by
    • Cell grouping
    • Forward grouping
    • Serum grouping
    • Lewis method
  6. Giardia lamblia causes
    • Traveller’s diarrhoea
    • Kala azar
    • Hydatid cyst
    • Malaria
  7. is not a component of flame emission photometer.
    • Bulb
    • Nebulizer
    • Flame
    • Photodetector
  8. Envelope shaped crystals seen in acidic urine
    • Calcium oxalate
    • Triple phosphate
    • Uric acid
    • Cystine
  9. The ideal temperature of blood bank refrigeration is
    • 2 to -6°C
    • 6 – 8°C
    • 2 to 6°C
    • 2 to 2°C
  10. The process by which the specimen is preserved in its original condition
    • Mounting
    • Autolysis
    • Clearing
    • Fixation
  1. The egg of which worm is referred to as a ‘Japanese Lantern’
    • Strongyloides stercoralis
    • Trichuris trichura
    • Ascaris lumbricoides
    • Ancylostoma duodenale
  2. Germ tube test is used to confirm
    • Cryptococcus neoformans
    • Trichophyton
    • Microsporum
    • Candida Albicans
  3. Sodium flouride – oxalate mixture is used for doing blood sugar estimation why?
    • enhances glycolysis
    • prevent glycolysis
    • preserves morphology
    • none of the above
  4. Satellite test is used for the identification of
    • S. aureus
    • S. typhi
    • H. influenzae
    • Cl. perfringes
  5. Increased osmotic fragility is seen in
    • Hereditary spherocytosis
    • lron deficiency anaemia
    • Sickle cell anaemia
    • Thalassemia
  6. Du antigen is detected by
    • DCT
    • ICT
    • ABO grouping
    • None of the above
  7. Normal RBC count
    • 4.5 to 6.5 millions/”mm3
    • 80 – 160 millions/ml
    • 4.5 to 6.5 lakhs /'”mm3
    • None of the above
  8. The dilution used for doing total sperm count
    • 1 : 100
    • 1 : 200
    • 1: 20
    • 1: 50
  9. The anticoagulant used for doing coagulation studies
    • Oxalate
    • EDTA
    • Heparin
    • Citrate
  10. The temperature maintained in a cryostat is
    • 10°C
    • 30°C
    • 4°C
    • 20°C
  11. The cellophane tape test is used to detect
    • Enterobius vermicularis
    • Ancylostoma duodenale
    • Ascaris lumbricoides
    • Echinococcus granulosus
  12. Hydatid cyst is caused by
    • Enterobius vermicularis
    • Ancylostoma duodenale
    • Ascaris lumbricoides
    • Echinococcus granulosus
  13. The holding period of sterilization for hot air oven
    • 160°C for 1 hr
    • 121°C for 30 mts
    • 160°C for 30 mts
    • 121°C for 1 hr
  14. Widal test is used to detect
    • Jaundice
    • Enteric fever
    • Diphtheria
    • Tetanus
  15. The metachromatic granules of corneybacterium diphtheria can be demonstrated by
    • Tuberculin test
    • Gram’s stain
    • Alberts stain
    • India ink
  16. Eleks gel precipitation test is used for
    • S. aureus
    • Corneybacterium diphtheriae
    • Cl. tetani
    • Bacillus
  17. L.J. medium, Loeffler’s serum slope etc are sterilized by
    • Tyndallization
    • Autoclave
    • Inspissation
    • Hot air oven
  18. Hospital wards and operation rooms are disinfected by
    • UV rays
    • X rays
    • Gamma rays
    • Visible light
  19. Example for transport medium
    • Wilson and Blairs media
    • TCBS
    • Cary blair media
    • Tellurite agar
  20. Benign tertian malaria is caused by
    • Pl. falciparum
    • Pl. ovale
    • Pl. malariae
    • Pl. vivax
  1. The method used for the estimation of T. protein
    • Kjeldhal’s method
    • Nesslerization
    • Salkowsky reaction
    • Van den Bergh reaction
  2. The stain used for the demonstration of iron pigments
    • Van Geison’s stain
    • Perl’s stain
    • PAS stain
    • D:-Masson trichrome
  3. The inner diameter of wintrobes tube
    • 1.5 mm
    • 3 mm
    • 2.5 mm
    • 1.5 cm
  4. Which is not a diluting fluid for absolute eosinophil count?
    • Hinglemann’s fluid
    • Piolet’s stain
    • Dunger’s fluid
    • Rees Eckers fluid
  5. Area used for counting AEC in an improved neubauer chamber
    • 9 “mm2
    • B:-4 “mm2
    • C:-1 “mm2
    • D:-5 “mm2
  6. String test is used to identify
    • S. aureus
    • V. cholerae
    • Proteus
    • Pseudomonas
  7. ESR is done by A:-Westergrons tube
    • Wintrobes tube
    • Westergrons tube
    • Esrite tube
    • All the above
  8. The factor that increases the ESR
    • presence of microcytes
    • presence of albumin
    • exposure to sunlight
    • unclean tubes
  9. For doing LE cell test we use
    • citrated blood
    • oxalated blood
    • clotted blood
    • heparinised blood
  10. The chemical used to detect ketone bodies in urine
    • Sodium nitroprusside
    • PDAB
    • “H_20_2”
    • Ferric chloride
  11. The blue colour of the benedict’s reagent is due to
    • sodium citrate
    • copper sulphate
    • ammonium sulphate
    • sodium carbonate
  12. The condition in which CSF shows clott with ‘cob-web’ appearance
    • Xanthochromia
    • Poliomyelitis
    • Tuberculous meningitis
    • All the above
  13. The first step for the sputum smear prepared for cytological examination is
    • Fix with ether ethyl alcohol mixture
    • -Fix with formation
    • Papanicolaou staining
    • None of the above
  14. Preservative used in pelkian India ink is
    • lactic acid
    • 0.3% tricresol
    • phenol
    • none of the above
  15. The colour of Schiff’s reagent is
    • yellow
    • blue
    • pink
    • colourless
  16. The bluing solution used for H & E staining
    • 1% HCl
    • 70% ethanol
    • Tap water
    • All the above
  17. Bleeding time is increased in
    • Platelet dysfunction
    • Vitamin K deficiencies
    • Severe clotting factor deficiency
    • All the above
  18. The refractive index of DPX is
    • 1.38
    • 1.45
    • 1.52
    • 1.85
  19. The fixative used for electron microscopy
    • Potassium dichromate
    • luteraldehyde
    • methyl alcohol
    • all the above
  20. The normal value of cholesterol is
    • 150-250 mg%
    • 100-200 mg%
    • 250-350 mg%
    • 120-180 mg%

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