MTAP 2 / HEMATOLOGY
Answer key
SURE
PWEDE I-SAGOT, SO DI KO SURE
1. The preanalytic phase of clinical laboratory testing includes all of the following except:
a. Reporting of laboratory results.
b. Verifying correct patient identification
c. Immediate mixing blood in tubes containing additives.
d. Correct entry of patient name and test/s ordered in laboratory information system.
2. Venipuncture needles after use, must be disposed of in a:
a. Biohazard bag
c. biohazard sharps container
b. Laboratory wastebasket
d. All of the above
3. Skin puncture on a newborn should preferably be performed on the:
a. Palmer side of the thumb
b. Palmer side of the index finger
c. Bottom side of the big toe
d. Lateral or medial surface of the bottom of the heel
4. Isopropyl alcohol (70%) is commonly used for cleansing the venipuncture site before phlebotomy. The
motion that should be used in cleansing list
a. Beginning at the outer edge away from the intended site of needle entry, use concentric circles and
gradually work in to the center
b. Using random motion, scrub over and around the intended site of needle entry for 1 full minute.
c. Beginning at the intended site of needle entry, work in concentric circles away from the site
d. Using random motion, lightly wipe over the intended site for 2 full minutes.
5. When hematopoiesis occurs in the liver in an adult, it is called
a. Intramedullary
b. Intermedullary
c. Normal
d. Extramedullary
6. What product is formed when ferrous iron of normal hemoglobin is oxidized to the ferric state?
a. Methemoglobin
b. Carboxyhemoglobin
c. Cyanmethemoglobin
d. Sulfhemoglobin
7. Hemoglobin C disease is characterized by
a. Target cells
b. Basophilic stippling
c. rod shaped crystals (a.k.a Bar of Gold crystals)
d. Schistocytes
8. The diluent used in the cyanmethemoglobin method for hemoglobin determination is:
a. Pilot's fluid
b. 0. IN HOL
c. Sodium carbonate
d. Drabkin's soln
9. Which of the following hemoglobins could be present in a normal adult?
a. Haba1
b. HgbA2
c. HgbF
d. All of the above
10. The plasma protein that binds free hemoglobin is:
a. Myoglobin
b. Haptoglobin
c. Hemosiderin
d. Transferrin
11. A hematocrit is a measure of:
a. Rbc sedimentation rate
, b. Total red blood cell mass
c. Total red blood cells
d. Packed red blood cell volume
12. An increase in erythrocyte sedimentation rate can be the result of an increase in the quantity of:
a. Fibrinogen
c. Platelets
b. Prothrombin
d. Red blood cells
13. On automated hematology analyzers, marked red blood cell fragments will cause and abnormal
histogram and/or scatterplots for:
a. White blood cells and red blood cells
b. Red blood cells and platelets
c. White blood cells and platelets
d. White blood cells, red blood cells, and platelets
14. The color of Wright-stained red blood cells may be adjusted by:
a. Dipping the slide in methanol before staining
b. Adjusting the buffer pH
c. Decreasing the concentration of glycerol in the stain
d. Rapid drying of slides
15. What staining method is used most frequently to stain and manually count reticulocytes?
a. Immunofluorescence
b. Supravital staining
c. Romanowsky staining
d. Cytochemical staining
16. The Coulter principle for counting of cells is based upon the fact that:
a. Isotonic solutions (saline) conduct electricity better than cells do
b. Conductivity varies proportionally to the number of cells
c. Cells conduct electricity better than saline does
d. Isotonic solutions cannot conduct electricity
17. A correction is necessary for WBC counts when nucleated RBs are seen on the peripheral smear
because:
a. The WBC count would be falsely lower
b. The RBC count is too low
c. Nucleated RBs are counted as leukocytes
d. Nucleated RBs are confused with giant platelets
18. Which condition will shift the oxyhemoglobin dissociation curve to the right?
a. Acidosis
b. Alkalosis
c. Multiple blood transfusions
d. Increased quantities of hemoglobin s or c
19. What is the major type of leukocyte seen in the peripheral smear of a patient with aplastic anemia?
a. Segmented neutrophil
b. Lymphocyte
c. Monocyte
d. Eosinophil
20. Which of the following results on an automated differential suggests that a peripheral smear should be
reviewed manually?
a. Segs = 70%
b. Band = 6%
c. Mono = 15%
d. Eos = 2%
21. Which is the first stage of erythrocytic maturation in which the cytoplasm is pink due to the formation of
hemoglobin?
a. Reticulocyte
c. Basophilic normoblast
b. Pronormoblast
d. Polychromatic normoblast - rubricyte
22. which of the following hemoglobins migrates to the same position as Hgb A2
at pH 8.6?
a. Hgb H
Answer key
SURE
PWEDE I-SAGOT, SO DI KO SURE
1. The preanalytic phase of clinical laboratory testing includes all of the following except:
a. Reporting of laboratory results.
b. Verifying correct patient identification
c. Immediate mixing blood in tubes containing additives.
d. Correct entry of patient name and test/s ordered in laboratory information system.
2. Venipuncture needles after use, must be disposed of in a:
a. Biohazard bag
c. biohazard sharps container
b. Laboratory wastebasket
d. All of the above
3. Skin puncture on a newborn should preferably be performed on the:
a. Palmer side of the thumb
b. Palmer side of the index finger
c. Bottom side of the big toe
d. Lateral or medial surface of the bottom of the heel
4. Isopropyl alcohol (70%) is commonly used for cleansing the venipuncture site before phlebotomy. The
motion that should be used in cleansing list
a. Beginning at the outer edge away from the intended site of needle entry, use concentric circles and
gradually work in to the center
b. Using random motion, scrub over and around the intended site of needle entry for 1 full minute.
c. Beginning at the intended site of needle entry, work in concentric circles away from the site
d. Using random motion, lightly wipe over the intended site for 2 full minutes.
5. When hematopoiesis occurs in the liver in an adult, it is called
a. Intramedullary
b. Intermedullary
c. Normal
d. Extramedullary
6. What product is formed when ferrous iron of normal hemoglobin is oxidized to the ferric state?
a. Methemoglobin
b. Carboxyhemoglobin
c. Cyanmethemoglobin
d. Sulfhemoglobin
7. Hemoglobin C disease is characterized by
a. Target cells
b. Basophilic stippling
c. rod shaped crystals (a.k.a Bar of Gold crystals)
d. Schistocytes
8. The diluent used in the cyanmethemoglobin method for hemoglobin determination is:
a. Pilot's fluid
b. 0. IN HOL
c. Sodium carbonate
d. Drabkin's soln
9. Which of the following hemoglobins could be present in a normal adult?
a. Haba1
b. HgbA2
c. HgbF
d. All of the above
10. The plasma protein that binds free hemoglobin is:
a. Myoglobin
b. Haptoglobin
c. Hemosiderin
d. Transferrin
11. A hematocrit is a measure of:
a. Rbc sedimentation rate
, b. Total red blood cell mass
c. Total red blood cells
d. Packed red blood cell volume
12. An increase in erythrocyte sedimentation rate can be the result of an increase in the quantity of:
a. Fibrinogen
c. Platelets
b. Prothrombin
d. Red blood cells
13. On automated hematology analyzers, marked red blood cell fragments will cause and abnormal
histogram and/or scatterplots for:
a. White blood cells and red blood cells
b. Red blood cells and platelets
c. White blood cells and platelets
d. White blood cells, red blood cells, and platelets
14. The color of Wright-stained red blood cells may be adjusted by:
a. Dipping the slide in methanol before staining
b. Adjusting the buffer pH
c. Decreasing the concentration of glycerol in the stain
d. Rapid drying of slides
15. What staining method is used most frequently to stain and manually count reticulocytes?
a. Immunofluorescence
b. Supravital staining
c. Romanowsky staining
d. Cytochemical staining
16. The Coulter principle for counting of cells is based upon the fact that:
a. Isotonic solutions (saline) conduct electricity better than cells do
b. Conductivity varies proportionally to the number of cells
c. Cells conduct electricity better than saline does
d. Isotonic solutions cannot conduct electricity
17. A correction is necessary for WBC counts when nucleated RBs are seen on the peripheral smear
because:
a. The WBC count would be falsely lower
b. The RBC count is too low
c. Nucleated RBs are counted as leukocytes
d. Nucleated RBs are confused with giant platelets
18. Which condition will shift the oxyhemoglobin dissociation curve to the right?
a. Acidosis
b. Alkalosis
c. Multiple blood transfusions
d. Increased quantities of hemoglobin s or c
19. What is the major type of leukocyte seen in the peripheral smear of a patient with aplastic anemia?
a. Segmented neutrophil
b. Lymphocyte
c. Monocyte
d. Eosinophil
20. Which of the following results on an automated differential suggests that a peripheral smear should be
reviewed manually?
a. Segs = 70%
b. Band = 6%
c. Mono = 15%
d. Eos = 2%
21. Which is the first stage of erythrocytic maturation in which the cytoplasm is pink due to the formation of
hemoglobin?
a. Reticulocyte
c. Basophilic normoblast
b. Pronormoblast
d. Polychromatic normoblast - rubricyte
22. which of the following hemoglobins migrates to the same position as Hgb A2
at pH 8.6?
a. Hgb H
