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MLSP MIDTERMS > hematology > Flashcards

hematology Flashcards

1
Q

study of formed (cellular) elements of blood

A

hematology

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2
Q

cellular elements, rbc, wbc, platelets

A

hematology section

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3
Q

most common body fluid analyzed in hema section

A

whole blood

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4
Q

mixture of cells and plasma

A

whole blood

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5
Q

body’s main fluid for transporting nutrients, waste products, gases, hormones through circulatory system

A

blood

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6
Q

average blood volume for adults:

A

5-6 L

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7
Q

liquid portion of anticoagulated blood

contains fibrinogen

A

plasma

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8
Q
  • 55% of total blood volume
  • clear, straw-colored fluid about 91% water & 9% dissolved substances
A

plasma

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9
Q

liquid portion of coagulated blood

A

serum

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10
Q

anuclear biconcave disks approximately 7.2 microns in diameter

A

erythrocytes (RBC)

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11
Q

lifespan of rbc

A

120 days

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12
Q

contain protein hemoglobin to transport O2 and CO2

A

erythrocyte (RBC)

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13
Q
  • provide immunity to certain diseases by producing antibodies
  • destroy harmful pathogens by phagocytosis
A

leukocyte (WBC)

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14
Q

normal number of WBC:

A

4,500-11,000 per microliter of blood

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15
Q

it determines the percent of each type of leuckocyte in blood

A

differential count

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16
Q

most numerous/abundant leukocyte

A

neutrophils

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17
Q

percent of neutrophils in blood

A

40-60%

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18
Q

WBC that provide natural immunity against infection through phagocytosis

A

neutrophils

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19
Q

WBC that increases in bacterial infection

A

neutrophils

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20
Q

“segmented” / “polymorphonuclear cells”

3-5 lobes of nucleus

A

neutrophils

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21
Q

second most numerous/abundant WBC

A

leukocyte

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22
Q

immune capbility by means of B & T cells

A

lymphocytes

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23
Q

lymphocyte that gives humoral immunity
(antibodies)

A

B lympocyte/cell

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24
Q

lymphocyte that do seeach and destroy of infections

A

T lymphocyte/ cell

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25
Q

increases in viral infections

measles, dengue, common cold

A

lymphocytes

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26
Q

largest(size) circulating leukocyte

A

monocytes

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27
Q

WBC that acts as powerful phagocytes to digest foreign material

A

monocytes

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28
Q

cytoplasm has fine blue-gray w/ vacuoles & large, irreg nucleus

appearance:

A

monocyte

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29
Q

tissue monocyte known as

A

macrophage

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30
Q

normal leukocyte percentage in blood

A

3-8%

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31
Q

red-orange granules, 2 lobes

appearance:

A

eosinophils

32
Q

normal percent of eosinophils in blood

A

1-3%

33
Q
  • WBC that detoxify foreign proteins
  • increase in allergies, skin & parasitic infections,
A

eosinophils

34
Q

least common WBC

A

basophils

35
Q

normal percent of basophils in blood

A

0-1%

36
Q

cytoplasm contains large granules that stain purple-black

appearance:

A

basophils

37
Q

release histamine in inflammation process & heparin to prevent abnormal blood clotting

A

basophils

38
Q

small, irreg shaped disks formed from cytoplasm of very large cells in bone marrow

A

thrombocytes (platelets)

39
Q
  • very large cells in bone marrow
  • immature version of platelets
  • fragements of platelets
A

megakaryocytes

40
Q

lifespan of platelets

A

9-12 days

41
Q

average number of platelets:

A

140,000 & 440,000 per microliter of blood

42
Q

plays vital role in blood clotting in all stages of coagulation mechanism

A

platelets

43
Q

primary analysis performed in hema section

A

complete blood count (CBC)

44
Q

% of different types of WBC & evaluates RBC & platelet morphology

A

differential

45
Q

volume of RBC packed by centrifugation (%)

A

hematocrit

46
Q

O2 carrying capacity of RBC

A

hemoglobin

47
Q

size of RBC and amount of hemoglobin

A

indices

48
Q

amount of hemoglobin in RBC

A

mean corpuscular hemoglobin (MCH)

49
Q

weight of hemoglobin in RBC and compare w/ size of cell (%)

A

mean corpuscular hemmoglobin concentration (MCHC)

50
Q

size of RBC

A

mean corpuscular volume (MCV)

51
Q

number of platelets in circulating blood

A

platelet count

52
Q

number of RBC in circulating blood

A

RBC count

53
Q

differences in size of RBC (%)

A

red cell distribution width (RDW)

54
Q

number of WBC circulating in blood

A

WBC count

55
Q

number & type of cells in various body fluids

A

body fluid analysis

56
Q

number & type of cells in bone marrow

A

bone marrow

57
Q

rate or RBC sedimentation (nonspecific test for inflammatory disorders0

A

erythrocyte sedimentaion rate (ESR)

58
Q

evaluates bone marrow production of RBC

A

reticulocyte (retic) count

59
Q

screening tests fro Hgb S( sickle cell anemia)

A

sickle count

60
Q

type of leukemia/ other cellular disorders

A

special stains

61
Q

specimen tube used in coagulation section

A

light blue (sodium citrate)

62
Q

intrinsic system of coag cascade & monnitors heparin therapy

A

activated partial thrombolastin time (APTT [PTT])

63
Q

screening test for increased clotting tendencies

A

antithrombin III

64
Q

monitors unfractioned heparin therapy

A

anti-xa heparin assay

65
Q

evaluate venous thrombosis

A

protein C & S

66
Q

function of platelets

A

bleeding time (BT)

67
Q

measure abnormal blood clotting & fibrinolysis

A

d-dimer

68
Q

detect factor deficiencies that prolong coag

A

factor assays

69
Q

test for increased fibrinolysis (STAT) in special tube

A

fibrin degradation products (FDP)

70
Q

amount of fibrinogen in plasma

A

fibrinogen

71
Q

function of platelets

A

platelet aggregation

72
Q

extrinsic system of coag cascade & monitors coumadin therapy

A

prothrombin time (PT) & international normalized rate (INR)

73
Q

adequate fibrinogen is present for normal coag

A
74
Q

needed for microscopic exam of blood cells that is performed for defferential blood count, for special staining procedures, nonautomated reticulocyte counts

A

blood smear

75
Q

examination should be collected before other samples

A

blood smear

76
Q

number of glass slide used for blood smear

A

2 glass slides

MLSP MIDTERMS (6 decks)

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