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Lab Dx Hematology Practice Test


									                       Lab Dx Hematology Practice Test

1. What is blood hematocrit?
     a. Total plasma
     b. % cells in volume
     c. % RBCs in volume
     d. Rate of erythropoesis

2. MPV reflects:
     a. Platelet volume
     b. ESR
     c. (MCV X RBC) / 10
     d. RBC variations in shape

3. RBCs live:
     a. 100 days
     b. 2.5 months
     c. 60 days
     d. 4 months

4. The area of central pallor is:
      a. the middle of an RBC with more hemoglobin
      b. The area where hemoglobin + CO2 resides
      c. A part of the RBC with less hemoglobin
      d. The area of a developing RBC still containing RNA

5. Erythropoiesis occurs
      a. Spleen
      b. Liver
      c. Femur
      d. Kidney

6. It takes reticulocytes _______ to become a mature erythrocyte.
        a. 120 days
        b. 30 days
        c. 1 day
        d. 1 hour

7. At which stage does a RBC-in-the-makin’ lose it’s nucleus?
      a. Rubricyte
      b. Reticulocyte
      c. Rubriblast
      d. Metarubricyte

8. Why would diabetics experience anemia?
       a. High levels of glucose in the blood stimulate the spleen to break down
          RBCs at a faster rate
       b. RBCs in the absence of insulin begin to deteriorate
       c. The production o erythropoietin decreases
       d. Poor diet may make them deficient in vitamins and minerals

9. The height of each _______ reading on a hemogram is proportional to the _____
   of the cell.
       a. density, voltage
       b. voltage, size difference
       c. volume, density
       d. voltage, volume

10. The Coulter method of counting RBCs counts thousands of cells per second and is
    measured in ______________.
       a. mmHg
       b. mm3
       c. mm/sec
       d. feet

11. T / F You would be able to tell from your hematogram reading if a person had
    sickle cell anemia or not.

12. Which of the following is a normal hematocrit reading?
      a. Male 50%
      b. Female 55%
      c. Female 34%
      d. Male 55%

13. You will need ________________ and ________________ to figure out the
    hematocrit. This will also give you the __________ percent composition.
       a. Mean cell volume, mean cell hemoglobin, plasma
       b. Mean cell volume, RBC number, platelet
       c. Mean cell hemoglobin concentration, RBC number, WBC
       d. Mean cell volume, RBC number, plasma

14. Generally speaking the following trend is seen in hematocrit levels:
       a. Newborn> females > males
       b. Newborn > males > females
       c. Males > newborns > females
       d. Males > females > newborns

15. Pregnant women may experience this phenomenon:
       a. hematodilution in the first trimester
       b. decreased hematocrite in the 3rd trimester
       c. hematoconcentration in the 1st trimester
                     d. A 3.7million/mm3 reading in the third trimester

     16. Not only can Gentamycin cause permanent hearing loss, it can also cause:
            a. An increase in hydration status
            b. Erythrocytosis
            c. A decrease in the number of RBCs
            d. Reactive polycythemia

     17. Which of the following is not a cause of erythrocytopenia?
           a. Hemolytic anemia
           b. Cirrhosis of the liver
           c. Congenital heart disease
           d. Prosthetic heart valves

     18. A deficiency of ____________ will cause an enlargement of RBCs whereas a
         deficiency of ____________ will cause a shrinkage.
             a. B12, folate
             b. Folate, iron
             c. Iron, B12
             d. Ascorbic acid, iron

     19. Anisocytosis is ______________ and poikilocytosis is _____________
            a. change in size, change in shape
            b. change in shape, change in size
            c. Change in volume, change in size
            d. Change in SGD, change in mood

20. ____ is iron deficiency, ___ is a posthemorrhagic anemia and ____ is a vegan with a
B12 deficiency,


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   20. An increase in RDW reflects:
          a. An increased hematocrit
          b. A bigger RBC
          c. An decreased variation of RBC morphology
          d. An increase variation of RBC size

21. Label: Target cell, Elliptocyte, Echinocyte, Schistocyte, Degmacyte, tear drop Draw:
Spherocyte, Drepanocyte. If you think it’s stretchin’ it to label some, just draw them in.

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   21. If you have a heart valve that causes mechanical trauma to a young erythrocyte,
       what cell might you get?
           a. Elliptocyte
           b. Spherocyte
           c. Schistocyte
           d. Target cell

   22. The most common form of RBC inclusion pathology is ________________ and
       can be caused by _____________.
          a. Heinz Body, unstable abnormal hemoglobins
       b. Howell-Jolly Body, iron deficiency
       c. Basophilic stippling, lead
       d. Target cell, liver disease

23. Howell-Jolly Bodies are ______________ whereas Heinz bodies are
       a. DNA, denatured Hgb
       b. Hello Dolly, ketchup
       c. Denatured Hgb, RNA
       d. RNA denatured Hgb

24. If one does not have a spleen, you are more likely to see:
        a. Howell-Jolly bodies
        b. Heinz Bodies
        c. Basophilic stippling
        d. Decrease hematocrit

25. A test for _______________ should be run on a person with ____________ who
    has hemolytic anemia triggered by eating ___________. Giving this person IV
    _______ could kill them.

       a.   G6PD
       b.   Vitamin C
       c.   B12
       d.   Lead
       e.   Heinz Bodies
       f.   Schistocytes
       g.   Thalassemia
       h.   Antibiotics
       i.   Fava beans
       j.   Ice cream

26. You have a patient who’s just had a bone marrow transplant and you want to
    check for it’s function. You would order __________
       a. CBC
       b. Reiculocyte count
       c. Hematogram
       d. Telegram for help

27. In order to know if your patient’s anemia is cause by hemolysis or by bone
    marrow failure, you would order:
        a. CBC
        b. Reiculocyte count
        c. Hematogram
        d. ESR
28. _______________ causes ________________.
       a. Hemolytic anemia, reticuloctytopenia
       b. Aplastic anemia, reticuloctytosis
       c. Hemolytic disease of newborn, reticuloctytopenia
       d. Pernicious anemia, reticuloctytopenia

29. ESR is valuable for:
      a. % hematocrit
      b. Reticulocyte index
      c. Inflammation indication
      d. Cell chromatin

30. ESR by the Westergren method is measured by a column with ________ at the
    top and ______ at the bottom to indicate the sedimentation rate per ________.
        a. 100
        b. 1
        c. 200
        d. 50
        e. 20
        f. 1 hour
        g. 3 hours
        h. 10 minutes

31. With the addition of fibrinogen to your sample you will see a neutralization of the
    _____ charge on the RBC. The _________ is overcome and cells

       a.   Cannot stack
       b.   Positive
       c.   Zeta potential
       d.   Negative
       e.   Stick to the sides of the tube
       f.   Beta potential
       g.   Conform into the Rouleax formation
       h.   Stick to the fibrinogen

32. An ESR must be set up within ________ for it to be valid.
       a. 30 minutes
       b. 1 hour
       c. 3 hours
       d. 24 hours

33. With a ESR of over 100mm/hr, which would be in your ddx?
       a. Menstruation
       b. Polycythemia
       c. Temporal ateritis
d. Chronic renal failure

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