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HEMATOLOGY > HEMA LAB-Q1 Finals > Flashcards

HEMA LAB-Q1 Finals Flashcards

1
Q

Enables medical technologist to view the cellular component components of the blood

A

Peripheral blood smear

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2
Q

The morphology of erythrocytes, leukocytes, and platelets are viewed to evaluate?

A

Structure and maturity, size, and number

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3
Q

Anticoagulant of choice for blood smear

A

EDTA

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4
Q

High quality smears can be obtained if they done in how many hours of blood draw

A

2-3 hours

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5
Q

Methods for blood smear

A

Cover glass smear, wedge smear, spun smear

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6
Q

Excellent leukocyte distribution

A

Cover glass smear

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7
Q

Most convenient method and widely used

A

Wedge smear

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8
Q

Requires an automated slide making and staining system

A

Spun smear

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9
Q

Size of blood drop in wedge smear

A

2mm in diameter

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10
Q

Angle when drawing the spreader slide

A

30 - 40 degrees

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11
Q

Label the slide at the frosted end using ?

A

Pencil

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12
Q

What should be written in labeling at the frosted end of the slide

A

Patient’s name & date

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13
Q

Length of the film

A

2/3 to 3/4

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14
Q

Shape of the film

A

Finger shaped

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15
Q

Provides the widest area for examination

A

Slightly rounded at the feather edge

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16
Q

If held against the light, feather edge has what type of appearance

A

Rainbow appearance

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17
Q

If more than 5 hours, it will result to unacceptable blood artifacts such as

A

Echinocytic RBC, spherocytes, vacoulated neutrophil

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18
Q

(Increase or decrease?)

Angle of thin smear

A

Decrease

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19
Q

(Increase or decrease?)

Pressure of thick smear

A

Decrease

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20
Q

(Increase or decrease?)

Size of blood for thin smear

A

Decrease

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21
Q

It’s cellular activity is GLOBIN PRODUCTION

A

Pronormoblast

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22
Q

Other name for pronormoblast

A

Rubiblast

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23
Q

Last stage of capable of mitosis

A

Polychromatic normoblast

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24
Q

Chromatin begins to condense

A

Basophilic normoblast

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25
Q

Has a pyknotic nucleus

A

Othochromic normoblast

26
Q

No more mitosis division

A

Orthochromic normoblast

27
Q

Last stage of hemoglobin production and resides in bone marrow

A

Polychromatophilic erythrocyte / reticulocyte

28
Q

Shape of erythrocyte

A

Biconcave

29
Q

Size of erythrocyte

A

6-8um

30
Q

Crucial for RBC to enter and remain in circulation

A

Deformability

31
Q

Permits effective assessment of RBC

A

Reticulocyte count

32
Q

Measure of effective erythropoiesis

A

Reticulocyte count

33
Q

Abnormal variation in RBC VOLUME and DIAMETER

A

Anisocytosis

34
Q

Normocyte MCV

A

80-100fl

35
Q

Associated with impaired DNA synthesis

A

Macrocytes

36
Q

Associated with defective hemoglobin formation

A

Microcytes

37
Q

Variation in NORMAL COLORATION

A

Asinochromia

38
Q

Normal RBC central pallor

A

1/3 diameter

39
Q

INCREASED number of red cells w/ variation in SHAPE

A

Poikilocytosis

40
Q

Spherical and lacks central pallor

A

Spherocytes

41
Q

Elongated rbc w/ slit-like central pallor

A

Stomatocyte

42
Q

Rbcs with REGULAR spiculated surface and usually evenly spaced

A

Echinocyte / Burr Cells

43
Q

Dense RBC with IRREGULAR spaced projections

A

Acanthocyte / Spurr cell

44
Q

Egg-shaped RBCs

A

Ovalocytes

45
Q

Cigar-shaped rbc

A

Elliptocyte

46
Q

Pear-shaped or tear-drop shaped

A

Dacryocyte

47
Q

Fragmented rbc due to rupture in the peripheral circulation

A

Schistocyte / schizocyte

48
Q

Rbc w/ hemoglobin concentrated in the center, resembling a target

A

Codocyte / leptocyte / target cell

49
Q

Rbc fragment in a shape of a helmet

A

Keratocyte/ bite cell

50
Q

Thin, dense, elongated rbc pointed at each end

A

Sickle cell

51
Q

Pappenheimer bodies whose presence can be confirmed with an iron stain such as

A

Prussian blue

52
Q

Are hemosiderin in the mitochondria

A

Pappenheimer bodies

53
Q

Round nuclear fragment, usually singular

A

Howell-jolly bodies

54
Q

Threadlike structures that appear as purple-blue loop/ringsn in wright’s stained red blood cell cytoplasm

A

Cabot rings

55
Q

Remnants of mitotic spindle fibers

A

Cabot rings

56
Q

Reddish hexagonal cytoplasmic red blood cell crystals described as “gold bar” or “washington monument”

A

Hemoglobin C crystals

57
Q

Represent precipitated hemoglobin, usually round or oval and tend to CLING to the cell membrane

A

Heinz bodies

58
Q

Aggregation of stacked rbc due to elevated plasma proteins and abnormal monoclonal proteins

A

Rouleaux formation

59
Q

Largest cell in the bone marrow

A

Mature megakaryocyte

60
Q

Megakaryocytic series produce?

A

Platelets

HEMATOLOGY (2 decks)

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