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HEMATOLOGY > HEMA LAB-Q1 Finals > Flashcards

HEMA LAB-Q1 Finals Flashcards

(60 cards)

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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
Has a pyknotic nucleus
Othochromic normoblast
26
No more mitosis division
Orthochromic normoblast
27
Last stage of hemoglobin production and resides in bone marrow
Polychromatophilic erythrocyte / reticulocyte
28
Shape of erythrocyte
Biconcave
29
Size of erythrocyte
6-8um
30
Crucial for RBC to enter and remain in circulation
Deformability
31
Permits effective assessment of RBC
Reticulocyte count
32
Measure of effective erythropoiesis
Reticulocyte count
33
Abnormal variation in RBC VOLUME and DIAMETER
Anisocytosis
34
Normocyte MCV
80-100fl
35
Associated with impaired DNA synthesis
Macrocytes
36
Associated with defective hemoglobin formation
Microcytes
37
Variation in NORMAL COLORATION
Asinochromia
38
Normal RBC central pallor
1/3 diameter
39
INCREASED number of red cells w/ variation in SHAPE
Poikilocytosis
40
Spherical and lacks central pallor
Spherocytes
41
Elongated rbc w/ slit-like central pallor
Stomatocyte
42
Rbcs with REGULAR spiculated surface and usually evenly spaced
Echinocyte / Burr Cells
43
Dense RBC with IRREGULAR spaced projections
Acanthocyte / Spurr cell
44
Egg-shaped RBCs
Ovalocytes
45
Cigar-shaped rbc
Elliptocyte
46
Pear-shaped or tear-drop shaped
Dacryocyte
47
Fragmented rbc due to rupture in the peripheral circulation
Schistocyte / schizocyte
48
Rbc w/ hemoglobin concentrated in the center, resembling a target
Codocyte / leptocyte / target cell
49
Rbc fragment in a shape of a helmet
Keratocyte/ bite cell
50
Thin, dense, elongated rbc pointed at each end
Sickle cell
51
Pappenheimer bodies whose presence can be confirmed with an iron stain such as
Prussian blue
52
Are hemosiderin in the mitochondria
Pappenheimer bodies
53
Round nuclear fragment, usually singular
Howell-jolly bodies
54
Threadlike structures that appear as purple-blue loop/ringsn in wright’s stained red blood cell cytoplasm
Cabot rings
55
Remnants of mitotic spindle fibers
Cabot rings
56
Reddish hexagonal cytoplasmic red blood cell crystals described as “gold bar” or “washington monument”
Hemoglobin C crystals
57
Represent precipitated hemoglobin, usually round or oval and tend to CLING to the cell membrane
Heinz bodies
58
Aggregation of stacked rbc due to elevated plasma proteins and abnormal monoclonal proteins
Rouleaux formation
59
Largest cell in the bone marrow
Mature megakaryocyte
60
Megakaryocytic series produce?
Platelets

HEMATOLOGY (2 decks)

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