MCQ’s Chapter 20 (Lab)

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

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Questions 951 to 1000

951. Urinary crystal having coffin lid appearance is :
     1. Uric acid
     2. Triple phosphate ✔
     3. Calcium oxalate
     4. Urate
952. Drepanocytes are seen in:
     1. Alcoholism
     2. Thalassaemia
     3. Uremia
     4. Sickle celi anaemia ✔
953. Urobilinogen is completely absent in :
     1. Obstructive jaundice ✔
     2. Haemolytie jaundice
     3. Hepatic jaundice
     4. Physiological jaundice
954. Non specific PAS staining is encountered after this fixation :
     1. Mercuric chloride
     2. Potassium dichromate
     3. Osmium tetroxide
     4. Glutaraldehyde ✔
955. DIC is a complication of :
     1. Acute promyelocytic leukaemia ✔
     2. Chronic myeloid leukaemia
     3. Hairy cell leukaemia
     4. Chronic lymphocytic leukaemia
956. Black coloured urine is a feature of :
     1. Phenyl ketonuria
     2. Alkaptonuria ✔
     3. Urinary tract infections
     4. Keto acidosis
957. Glanzmann’s disease is associated with :
     1. Defective platelet aggregation ✔
     2. Defective platelet adhesion
     3. Normal clot retraction
     4. None of these
958. Length of wintrobes haematocrit tube :
     1. 9cm
     2. 19cm
     3. l1 cm ✔
     4. 12cm
959. Betke-Kleihauer method ia used to detect :
     1. HbA
     2. HbF ✔
     3. HbC
     4. None of these
960. Green coloured vacutainer tube contains :
     1. Fluoride
     2. EDTA
     3. Citrate
     4. Heparin ✔

961. Coulter counter is based on:
     1. Impedence method ✔
     2. Light reflection
     3. Light refraction
     4. All the above
962. The stain used to demonstrate Barr Body :
     1. H& Estain
     2. Reliculin stain
     3. PAS stain
     4. Shorr stain ✔
963. Glycosidic linkage in maltose is :
     1. Alpha 1-4 linkage ✔
     2. Beta 1-4 linkage
     3. Alpha 1-6 linkage
     4. Alpha 1-2 linkage
964. Bence Johns protein is seen in:
     1. Nephrotic syndrome
     2. Multiple myeloma ✔
     3. Cirrhosis of liver
     4. Hepatitis
965. Amino acids involved in creatinine synthesis :
     1. Glycine
     2. Arginine
     3. Methionine
     4. All the above ✔
966. Cocci arranged in packets of eight :
     1. Micrococci
     2. Gonococci ✔
     3. Sarcina
     4. Pneumococci
967. Which among the following is a best marker of myocardial ischemia?
     1. ALP
     2. GGT
     3. Cystanin C
     4. CKMB (mass) ✔
968. Microalbuminuria is defined as:
     1. < 10 mg Albumin/day
     2. 30-300 mg Albumin/day ✔
     3. 1-3 gm Albumin/day
     4. > 1-3 mg Albumin/day
969. Leukemia may be suspected when a manual hematocrit determination reveals 
     1. A high hematocrit
     2. Hemolysis
     3. A heavy buffy coat ✔
     4. Icteric plasma
970. A donor who recently tested positive for HBsAg should be deferred
     1. Permanently ✔
     2. For 5 years
     3. For 6 months
     4. For 1 year
971. Which of the following enzymes are present in heart muscle? 1. lactic dehydrogenase (LDH) (LD) 2. creatinine phosphokinase (CPK) (CK) 3. serum glutamic oxaloacetic transaminase (SGOT)
     1. 1,2, and 3 ✔
     2. 1 and 2 only
     3. 2 only
     4. 2 and 3 only
972. Antihuman serum globulin (Coombs) is NOT used in performing
     1. D(u) testing
     2. Reverse typing ✔
     3. Autoagglutination tests
     4. Immunoglobulin testing
973. The principle involved in some automated blood cell counters is based on the 
     1. Weight of the hemoglobin in the red cell
     2. Size of the particle being counted ✔
     3. Value of the cell indices
     4. Amount of hemoglobin in the red cell
974. In serologic tests for syphulis, reagin reactivity may result from an acute or chronic infection such as
     1. Infectious hepatitis
     2. Lupus erythematosus ✔
     3. Helicobacter pylori
     4. Pneumonia
975. Most of the plasma thyroxine (T4) is
     1. Bound to albumin
     2. Free
     3. Bound to cholesterol
     4. Bound to globulin ✔
976. Which one of the following may detect a hemolytic transfusion reaction?
     1. Serum haptoglobin ✔
     2. Pre-transfusion bilirubin
     3. Urine porphyrins
     4. Post-transfusion red blood count and hemoglobin
977. A trophozoite of Entamoeba histolytica usually contains
     1. Red blood cells int he cytoplasm ✔
     2. A coarse, granular, blunt pseudopod
     3. Bacteria and coarse granules in the cytoplasm
     4. Eccentrically located endosome in the nucleus
978. Beer’s law states that the darker the color produced, the more light absorbed in the specimen; the more light absorbed, the
     1. Lower the concentration of the analyte
     2. Longer the wavelength required
     3. Higher the concentration of the analyte ✔
     4. More light transmitted
979. In using a urinometer to measure specific gravity, the correction facotr for each 3 degrees C higher or lower than calibration temperature is 
     1. +/- 1.001
     2. +/- 0.001 ✔
     3. +/- 0.100
     4. +/- 0.010
980. A mother is Rh(D) negative. The father is homozygous Rh(D) positive. All of their offspring will be
     1. Homozygous Rh(D) positive
     2. Heterozygous Rh(D) positive ✔
     3. Erythroblastotic
     4. 50% Rh(D) positive and 50% Rh(D)negative

981. The organism that can cause rheumatic fever and/or glomerular nephritis is 
     1. Staphylococcus haemolyticus
     2. Streptococcus pyogenes ✔
     3. Streptococcus viridans
     4. Staphylococcus aureus
982. A reactive fluorescent treponemal antibody (FTA-AB) test
     1. Indicates the severity of infection
     2. Confirms the presence of treponemal antibodies ✔
     3. Indicates no infection
     4. Is positive during the chancre stage
983. The end-product of purine metabolism is
     1. Creatine
     2. Uric acid ✔
     3. Creatinine
     4. Urea
984. Sodium is responsible for the maintenance of 
     1. Blood coagulation
     2. Osmotic pressure of body fluids ✔
     3. Salt intake
     4. Cardiac muscle contractions
985. The type of anemia usually associated with severe burns is 
     1. Microcytic
     2. Macrocytic
     3. Hemolytic ✔
     4. Aplastic
986. Hansel’s stain is appropriate for 
     1. Phagocytic neutrophils
     2. Nasal secrection for eosinophiles ✔
     3. Circulating eosinophiles
     4. Leukocytes in spinal fluid
987. Bordet-Gengou and Eugon agar base with fresh blood is used for the isolation of 
     1. Pasteurello
     2. Bordetella ✔
     3. Haemophilus
     4. Yersinia
988. When a patient has been sensitized, which of the following tests would be used to help identify the antibody that is attached to the patient’s cells IN VIVO?
     1. Elution ✔
     2. Direct anti-human globulin test
     3. Indirect anti-human globulin test
     4. D(u)
989. Cell/antibody mixtures used in tube testing to determine ABO Group should be centrifuged for 
     1. 15-30 seconds @ 1000 ✔
     2. 5 min @ 5000
     3. 2 min @ 2000
     4. 3 min @ 3000
990. Which of the following tests is used to measure capillary fragility?
     1. Partial thromboplastin time (PTT)
     2. Prothrombin time
     3. Bleeding time
     4. Tourniquet ✔
991. According to the Lancefield scheme of classifying the Streptococcus species, the neterococci are placed in group 
     1. A
     2. B
     3. C
     4. D ✔
992. During the crossmatch procedure, a negative rsult on the addition of Coombs control cells indicated that the 
     1. Antiglobulin reagent is detecting antibody globulin, indicating adequate washing during the crossmatch procedures.
     2. Crossmatch is incompatible
     3. Antiglobulin reagent is inactivated, neutralized, or not added to the test. ✔
     4. Crossmatch is compatible and the blood may be infused
993. Alkaline phosphatase is GREATLY elevated in 
     1. Liver disease
     2. Kidney disease
     3. Obstructive jaundice ✔
     4. Myocardial infarction
994. Fibrinogen determinations are performed on 
     1. Serum only
     2. Any body fluid
     3. Either serum or plasma
     4. Plasma only ✔
995. The infective stage of the hookworm is the 
     1. Filariform larva with a pointed tail ✔
     2. Rhabditiform larva with a short buccal cavity
     3. Filariform larva with a notched tail
     4. Rhabditiform larva with a long buccal cavity
996. Antihuman serum globulin reagent 
     1. Is produced in humans
     2. Never detects complement-dependent antibodies
     3. Is produced in laboratory animals ✔
     4. Occurs naturally in most humans
997. Fungi are commonly identified on their basis of their 
     1. Solubility in 20% potassium hydroxide
     2. Serologic and biochemical characteristics
     3. Staining properties with polychrome dyes
     4. Sporulation and the arrangement of spores on the hyphae ✔
998. Brilliant cresyl blue or new methylene blue are stains used for counting
     1. Howell-Jolly bodies
     2. Reticulocytes ✔
     3. Malaria
     4. Platelets
999. Osmolality of a solution is determined by measuring
     1. Freezing point depression ✔
     2. Ionic strength
     3. Refractive index
     4. Specific gravity
1000. Enterobius vermilcularis is a 
      1. Filarial worm
      2. Flat worm
      3. Hookworm
      4. Pinworm ✔

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