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Hema (prelim) > overview > Flashcards

overview Flashcards

1
Q

unclotted fluid portion of blood

A

plasma

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2
Q

clotted fluid portion of blood

A

serum

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3
Q

to compare/monitor previous and current result

A

delta check

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4
Q

discovered erythrocytes (1658)

A

Swammerdam

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5
Q

shape of an inactive platelet

A

round

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6
Q

shape of an active platelet

A

irregular (pseudopads)

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7
Q

term where the platelets aggregate

A

petite plaques

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8
Q

wbc differential count

A

100

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9
Q

discovered nuetrophils

A

Wharton Jones

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10
Q

made a classification of leukocyte

A

Paul Ehrlich

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11
Q

most commonly used stain for bone marrow and blood smear

A

Wright stain

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12
Q

wright stain is composed of

A

methylene blue
eosin

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13
Q

what year does the separation of the hematology section happen?

A

1920

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14
Q

1st electronic counter

A

coulter counter

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15
Q

what is the principle of coulter counter?

A

electronic impedence

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16
Q

blood consist of

A

cells (45%)
buffy coat (1%)
plasma (55%)

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17
Q

the 1% portion of blood consist of?

A

PLT
WBC
nRBC
reticulocytes

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18
Q

layers of the blood

A

top layer: fatty layer
2nd layer: plasma
3rd layer: buffy coat
bottom layer: packed RBC

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19
Q

2 types of defense

A

humoral
cellular

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20
Q

humoral defense consist of

A

body fluids

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21
Q

cellular defense consist of

A

NEUT
EO
MONO
BASO

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22
Q

3 types of tonicity

A

hypertonic
isotonic
hypotonic

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23
Q
  • high solute concentration
  • RBC shrinks
A

hypertonic

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24
Q
  • equal solute concentration
  • retains the shape
A

isotonic

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25
Q
  • low solute concentration
  • RBC swells, eventually bursts
A

hypotonic

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26
Q

we use (?) solution to count WBC

A

hypotonic

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27
Q

RBC is made up of how many percent Hgb

A

95%

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28
Q

2 types of Hgb

A

oxyHgb (arterial)
deoxyHgb (veinous)

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29
Q

slight hemolysis plasma (color)

A

pink

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30
Q

gross hemolysis plasma (color)

A

red

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31
Q

graveyard for RBC

A

spleen

32
Q
  • intravascular hemolysis of plasma
  • Icteria/Icterus (color)
A

yellow-brown

33
Q

color of plasma that has Lipemia

A

milky-turbid

34
Q

Serum has (?)
Plasma has (?)

A

Fibrin (FIa)
Fibrinogen (FI)

35
Q

the one that activates fibrinogen

A

thrombin

36
Q

sizes of RBC

A

normocytic
microcytic
macrocytic

37
Q

normal size of RBC

A

normocytic

38
Q

<6 size of RBC

A

microcytic

39
Q

> 8 size of RBC

A

macrocytic

40
Q

1/3 central pallor

A

normochromic

41
Q

<1/3 central pallor
- high Hgb

A

hyperchromic

42
Q

> 1/3 central pallor
- low Hgb

A

hypochromic

43
Q

2 types of hyperchromic RBC

A

spherocytes
stomatocytes

44
Q

2 types of hypochromic RBC

A

target cells
elliptocytes

45
Q

what do you call the abnormally shaped cell

A

hypochromic

46
Q

dilution ratio of RBC

A

1:200

47
Q

use to count RBC

A

hemacytometers

48
Q

best RBC diluting fluid

A

Dacie’s solution / Formol Citrate

49
Q

sodium carbonate (original drabkins), how many minutes?

A

15 min

50
Q

dihydrogen potassium (modified drabkin), how many minutes?

A

3 min

51
Q

Macrohematocrit uses (?)

A

wintrobe tube (30 min)

52
Q

microhematocrit uses (?)

A

capillary tube (5 min)

53
Q

normal MCHC count

A

32-36 g/dL

54
Q

term for not applicable

A

De facto

55
Q

term for variation in shape

A

poikilocytosis

56
Q

term variation in size

A

anisocytosis

57
Q

standard deviation of RBC

A

RDW

58
Q

if Hgb has problem, the RBC (?)

A

decreases

59
Q

RBC shoud be free of (?)

A

inclusions

60
Q
  • RNA remnant
  • stays in the blood for 1 day
  • RBC precursor (only)
A

reticulocyte

61
Q

normal value of reticulocyte in the blood

A

0.5% - 2.5%

62
Q

the only immature WBC seen in the blood

A

Band NEUT

63
Q

dilution ratio of WBC

A

1:20

64
Q

best diluting solution for WBC

A

Turk’s solution

65
Q

main role of PLT

A

hemostasis

66
Q

you can make blood smears for (?) only after collection

A

4-5 hrs

67
Q

any abnormality not in the range of the result, indicates a (?)

A

flag

68
Q

he described “worms” in the blood

A

Anathasius Kircher (1657)

69
Q

gave an account for RBC

A

anton van leeuwenhoek (1674)

70
Q

described PLTs as “petites plaques”

A

Giulio Bizzozero (1800)

71
Q

developed the Wright stain

A

james homer wright

72
Q

the foundation of blood cell identification

A

Wright’s Romanowsky-type stain

73
Q

blood cell is analayzed using (?) light microscopy

A

500× - 100×

74
Q

reduced RBC count

A

anemia

75
Q

increased RBC count

A

polycythemia

76
Q

historically, microscopists counted RBCs by using a pipette called (?)

A

thoma pipette

Hema (prelim) (1 decks)

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