Quiz Answers
- Alkaline phosphatase is GREATLY elevated in
- a. Liver disease
- b. Kidney disease
- c. Obstructive jaundice ✅
- d. Myocardial infarction
- Fibrinogen determinations are performed on
- a. Serum only
- b. Any body fluid
- c. Either serum or plasma
- d. Plasma only ✅
- The infective stage of the hookworm is the
- a. Filariform larva with a pointed tail ✅
- b. Rhabditiform larva with a short buccal cavity
- c. Filariform larva with a notched tail
- d. Rhabditiform larva with a long buccal cavity
- Antihuman serum globulin reagent
- a. Is produced in humans
- b. Never detects complement-dependent antibodies
- c. Is produced in laboratory animals ✅
- d. Occurs naturally in most humans
- Fungi are commonly identified on their basis of their
- a. Solubility in 20% potassium hydroxide
- b. Serologic and biochemical characteristics
- c. Staining properties with polychrome dyes
- d. Sporulation and the arrangement of spores on the hyphae ✅
- Brilliant cresyl blue or new methylene blue are stains used for counting
- a. Howell-Jolly bodies
- b. Reticulocytes ✅
- c. Malaria
- d. Platelets
- Osmolality of a solution is determined by measuring
- a. Freezing point depression ✅
- b. Ionic strength
- c. Refractive index
- d. Specific gravity
- Enterobius vermicularis is a
- a. Filarial worm
- b. Flat worm
- c. Hookworm
- d. Pinworm ✅
- The modified Griess nitrite test, when positive to any degree, is virtually diagnostic of
- a. Phenylalanine in the urine
- b. Significant bacteriuria (10(5) organisms per milliliter of urine) ✅
- c. Bilirubin in the urine
- d. Any bacteriuria (10(1) to 10(5) organisms per milliliter of urine)
- According to Landsteiner, when a specific antigen is present on blood cells, the corresponding antibody
- a. Is present in the serum
- b. Is absent from the serum ✅
- c. May or may not be present depending on the agglutinogens present
- d. Is present in the blood cells
- Carbohydrates are organic compounds of 1. carbon 2. hydrogen 3. oxygen
- a. 1 and 2 only
- b. 2 and 3 only
- c. 1, 2, and 3 ✅
- d. 1 and 3 only
- The etiologic agent of chancroid is
- a. Haemophilus aegyptius
- b. Haemophilus ducreyi ✅
- c. Bordetella pertussis
- d. Haemophilus influenzae
- Who is credited with processing the most readily acceptable theory of ABO inheritance?
- a. Landsteiner ✅
- b. Bernstein
- c. Levine
- d. Weiner
- Blood group A individuals have
- a. Anti-O in their serum
- b. Antigen A and B on their red cells
- c. Anti-A in their serum
- d. Anti-B in their serum ✅
- Which one of the following methods could be used to study protein abnormality?
- a. Isoenzyme electrophoresis
- b. Blood viscosity studies
- c. Electrophoresis of penicilliamine-treated serum
- d. Immunoelectrophoresis ✅
- Clot retraction can be employed as an indicator of
- a. Factor VII deficiency
- b. Platelet function ✅
- c. Factor X deficiency
- d. Hemophilia
- A trophozoite of Entamoeba histolytica usually contains
- a. A coarse, granular, blunt pseudopod
- b. Bacteria and coarse granules in the cytoplasm
- c. Red blood cells in the cytoplasm ✅
- d. Eccentrically located endosome in the nucleus
- Cerebral spinal fluid patients with post-cerebral hemorrhage appears
- a. Green
- b. Bright red
- c. Clear (colorless)
- d. Light yellow or straw colored ✅
- Which stage of the coagulation process would be affected by a deficiency of Factor VIII?
- a. First ✅
- b. Third
- c. Second
- d. Fourth
- Which organisms are described as minute, very pleomorphic, sometimes coccobacillary, gram-negative rods that must have media enriched with X and V factors?
- a. Haemophilus influenzae ✅
- b. Escherichia coli
- c. Listeria monocytogenes
- d. Bacillus anthracis
- According to Landsteiner, when a specific antigen is present on blood cells, the corresponding antibody
- a. Is present in the blood cells
- b. Is present in the serum
- c. Is absent from the serum ✅
- d. May or may not be present depending on the agglutinogens present
- The screening or presumptive test for the osmotic fragility of red cells is normal when hemolysis begins in
- a. 0.50% NaCl ✅
- b. 0.90% NaCl
- c. 1.34% NaCl
- d. 0.85% NaCl
- Most methods for the determination of blood creatinine are based on the reaction of creatinine and
- a. Acetic anhydride
- b. Sulfuric acid
- c. Alkaline picrate ✅
- d. Ammonium hydroxide
- Which one of the following test differentiates Staphylococcus aureus from other types of staphylococci?
- a. Oxidase
- b. Fibrinolysin
- c. Catalase
- d. Coagulase ✅
- Bordet-Gengou and Eugon agar base with fresh blood is used for the isolation of
- a. Yersinia
- b. Pasteurello
- c. Haemophilus
- d. Bordetella ✅
- The type of anemia usually associated with severe burns is
- a. Macrocytic
- b. Hemolytic ✅
- c. Microcytic
- d. Aplastic
- All of the following influence glomerular filtration EXCEPT
- a. Cardiac failure and renal or urinary calculi
- b. Hyperglycemia and renal tubule malfunction ✅
- c. Renal or urinary calculi and decreased renal blood flow
- d. Decreased renal blood flow and cardiac failure
- The major cation found in the extracellular fluid is
- a. Chloride
- b. Potassium
- c. Sodium ✅
- d. Bicarbonate
- On an automated blood cell counter, the two parameters affected by a high background count would be
- a. WBC and Hgb
- b. RBC and WBC ✅
- c. Hct and WBC
- d. RBC and Hgb
- To determine if a patient is A1 or A2, the blood is typed with
- a. Anti-A serum
- b. Anti-AB serum
- c. Anti-A2 serum
- d. Dolichos biflorus serum ✅
- Metabolic acidosis can be detected by testing urine for the presence of
- a. Protein
- b. Uric acid
- c. Ketone bodies ✅
- d. Glucose
- Freezing point depression measurements are part of which one of the following urine test procedures?
- a. Specific gravity
- b. Hydrometry
- c. Refractive index
- d. Osmolality ✅
- The ketone test area on a dip stick is impregnated with
- a. Alkaline copper
- b. Ferric chloride
- c. Nitroprusside ✅
- d. 2,4 dichloraniline
- 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?
- a. Indirect anti-human globulin test
- b. D(u)
- c. Direct anti-human globulin test
- d. Elution ✅
- On most automated cell counters, background counts are made using
- a. Lysing reagent only
- b. Highly-diluted blood
- c. Distilled water
- d. Diluting fluid ✅
- Beer’s law states that the darker the color produced, the more light absorbed in the specimen; the more light absorbed, the
- a. Longer the wavelength required
- b. Higher the concentration of the analyte ✅
- c. More light transmitted
- d. Lower the concentration of the analyte
- Alkaline phosphatase is GREATLY elevated in
- a. Myocardial infarction
- b. Liver disease
- c. Obstructive jaundice ✅
- d. Kidney disease
- Osmolality of a solution is determined by measuring
- a. Ionic strength
- b. Refractive index
- c. Freezing point depression ✅
- d. Specific gravity
- The egg of the Schistosoma characterized by a pronounced lateral spine is
- a. Schistosoma haematobium
- b. Schistosoma hepatica
- c. Schistosoma japonicum
- d. Schistosoma mansoni ✅
- Reticulocytes contain
- a. Howell-Jolly bodies
- b. DNA remnants
- c. Basophilic granules
- d. RNA remnants ✅
- Enterobius vermicularis is a
- a. Flat worm
- b. Filarial worm
- c. Hookworm
- d. Pinworm ✅
- Streptococcus pneumoniae
- a. Capsules are produced by virulent strains ✅
- b. Is motile
- c. Is consistently gram-positive even in old cultures
- d. Grows best at slightly acid pH
- The end-product of purine metabolism is
- a. Creatinine
- b. Uric acid ✅
- c. Creatine
- d. Urea
- Which one of the following methods could be used to study protein abnormality?
- a. Immunoelectrophoresis ✅
- b. Isoenzyme electrophoresis
- c. Electrophoresis of penicilliamine-treated serum
- d. Blood viscosity studies
- Sodium is responsible for the maintenance of
- a. Cardiac muscle contractions
- b. Blood coagulation
- c. Salt intake
- d. Osmotic pressure of body fluids ✅
- In serologic tests for syphilis, reagin reactivity may result from an acute or chronic infection such as
- a. Infectious hepatitis
- b. Pneumonia
- c. Helicobacter pylori
- d. Lupus erythematosus ✅
- A variety of media may be safely stored for months if care is taken to
- a. Maintain them in an incubator
- b. Avoid exposing them to light
- c. Maintain them at room temperature
- d. Retain their moisture ✅
- Which of the following tests is specific for urinary glucose?
- a. Pandy
- b. Benedict’s
- c. Clinitest
- d. Dip stick ✅
- The cystic stage of development has NOT been demonstrated in which of the following organisms?
- a. Iodamoeba butschlii
- b. Balantidium coli
- c. Endolimax nana
- d. Trichomonas vaginalis ✅
- The distance between the ruled surface and cover slip of the hemacytometer is
- a. 1.0 mm
- b. 0.1 cm
- c. 0.1 mm ✅
- d. 1.0 cm
