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HEMATOLOGY > HEMA PRELIM > Flashcards

HEMA PRELIM Flashcards

1
Q

Additive of light blue tube

A

Sodium Citrate

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2
Q

Angle in syringe method

A

15

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3
Q

what is the angle of spreader slide in blood smear

A

30 to 45 degrees

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4
Q

Additive of Royal blue tube

A

Sodium Heparin

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5
Q

Additive of Light green marbled / Light green tube

A

Thrombin

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6
Q

how many cc or mL syringe should be used in push-pull method from CVAD

A

10 mL

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7
Q

Use of green tube

A

Plasma chemistry

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8
Q

Additive of Tan tube

A

Sodium Heparin

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9
Q

Use of lavender tube

A

Blood cell counting

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10
Q

Function of Sodium Citrate

A

Bind calcium preventing clotting

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11
Q

Peripheral blood is obtained from the tip of the ___ or ____ finger

A

3rd or 4th

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12
Q

Use of light blue tube

A

Coagulation studies

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13
Q

function of thrombin

A

clot activator

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14
Q

Depth of syringe method

A

0.5 to 1 cm

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15
Q

Function of Sodium polyanethol sulfonate

A

Stabilizes bacterial growth
Binds calcium preventing clotting

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16
Q

Additive of Plain Red

A

None; no additive

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17
Q

Additive of pink tube

A

Spray-dried K2EDTA

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18
Q

Function of K2EDTA

A

Binds calcium preventing clotting

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19
Q

part of the baby’s heel to be punctured

A

anterior rim of the posterior aspect of the heel or big toe

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20
Q

are thin, flexible, hollow tubes inserted and positioned into a vein to access the bloodstream

A

central venous access devices (CVADs)

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21
Q

Use of plain red tube

A

Blood chemistry, serology blood banking

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22
Q

Additive of yellow tube

A

Sodium polyanethol sulfonate
Acid citrate dextrose

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23
Q

How many % should be the concentration of alcohol to be used in venipuncture and skin puncture

A

70%

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24
Q

where should you place the small drop of blood in a clean glass slide

A

far end

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25
Q

Additive of Gold tube / Red marbled

A

Gel separator
Clot activator

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26
Q

Additive of gray tube

A

Sodium fluoride-potassium oxalate
Sodium fluoride
Sodium fluoride-K2EDTA

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27
Q

Use of royal blue tube

A

Toxicology detection of trace metals

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28
Q

use of pink tube

A

whole blood hematology test

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29
Q

Use of yellow tube

A

Blood culture
Blood bank studies
HLA phenotyping
DNA and paternity testing

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30
Q

Needle gauge used in venipuncture

A

21 to 21 gauge

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31
Q

criteria of a good smear

A

there should be an even transition from the thick area to the thin area
smear must cover 2/3 or 3/4 of slide
must have a smooth and even surface
must have a feathery edge

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32
Q

simplest and the most popular method of smear preparation

A

two-slide or wedge method

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33
Q

Additive of green tube

A

Sodium Heparin
Lithium Heparin

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34
Q

Use of gray tube

A

Glucose

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35
Q

Apply the tourniquet ___ to ___ inches _____ the puncture site

A

3 to 4 inches, above

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36
Q

Function of Sodium fluoride

A

Inhibits glycolysis
Binds calcium preventing clotting

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37
Q

Additive of lavender tube

A

Liquid K2EDTA (glass) Spray-dried K2EDTA (plastic)

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38
Q

what angle should the syringe be in arterial puncture

A

35 to 40 degrees

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39
Q

use of yellow marbled / orange tube

A

STAT chemistry

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40
Q

how many mL of blood should be aspirated from the CVAD in discard method

A

3 to 6 mL

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41
Q

use of light green marbled / light green tube

A

potassium determination

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42
Q

How deep should be the puncture for skin puncture

A

2 to 3mm

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43
Q

use of tan tube

A

lead determination

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44
Q

Use of red marbled / Gold tube

A

blood chemistry

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45
Q

Function of Sodium heparin or Lithium heparin

A

Inhibits thrombin formation preventing clotting

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46
Q

other methods of smear preparation

A

two-cover slip
spinner’s method

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47
Q

instrument used for automated slide-making and staining of blood

A

automated smear preparation

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48
Q

used to count the cellular elements of the blood

A

hemacytometer

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49
Q

consists of counting chamber, rbc and wbc pipette, suction device, and thick coverslip

A

hemacytometer

50
Q

types of counting chamber

A

improved neubauer
neubauer
fuchs-rosenthal
speris-levy
buerker’s and uterk’s
bass-jones
thoma

51
Q

made of heavy colorless glass

A

improved neubauer counting chamber

52
Q

the central platform is exactly ______ mm lower than the lateral platforms

A

0.1 mm

53
Q

primary square measurement in improved neubauer

A

3x3 mm (9mm)

54
Q

secondary square measurement in improved neubauer

A

1x1 mm

55
Q

four-corner of secondary squares are used for _____ and are subdivided into 16 tertiary squares

A

wbc count

56
Q

the central secondary square is divided into _____ tertiary squares measuring _____

A

25 tertiary squares, 0.2 mm

57
Q

total number of smaller squares in the central secondary square

A

400

58
Q

considerably larger than the naeubauer counting chamber

A

fuchs-rosenthal counting chamber

59
Q

how much does the mixing chamber or bulb of rbc pipette hold

A

100 units of volume

60
Q

its bore is smaller than of a wbc pipette

A

rbc pipette

61
Q

how much does the mixing chamber or bulb of wbc pipette hold

A

10 units of volume

62
Q

the number of red cells in 1 mm of blood

A

red blood cell count (rbc)

63
Q

characteristics of a good rbc diluting fluid

A

must be an isotonic solution
must have a high sg
must be easy to prepare
must be cheap
must be a good preservative
must have a buffer action
must not initiate the growth of mold

64
Q

how many mark of blood should be aspirated using rbc pipette

A

0.5 mark

65
Q

how many mark of diluting fluid should be aspirated using rbc pipette

A

101 mark

66
Q

ratio of dilution on rbc pipette

A

1:200 or 1/200

67
Q

how many drops should be discarded first from the diluted blood

A

5 to 6 drops

68
Q

let the counting chamber stand for ____ to ____ minutes to allow the rbc to settle

A

5 to 10 mins

69
Q

use _____ objective for location before _____ objective for actual counting

A

low power, high power

70
Q

direction of counting of rbc

A

left to right, drop down, right to left, drop down, left to right

71
Q

what is included in the count of rbc

top and left border or right and bottom border

A

top and left border

72
Q

formula for the computation of rbc

A
73
Q

low rbc count indicates

A

anemia

74
Q

high rbc count indicates

A

polycythemia

75
Q

low wbc count

A

leukopenia

76
Q

high wbc count

A

leukocytosis

77
Q

normal range of rbc

A

4.2 to 5 million

78
Q

normal range of rbc for males

A

4.5 to 6.0 million/mm3

79
Q

normal range of rbc for females

A

4.0 to 5.5 million/mm3

80
Q

normal range of rbc for late pregnancy

A

3.0 to 5.0 million/mm3

81
Q

normal range of rbc at birth

A

7.0 million/mm3

82
Q

convenient method of preparing diluted blood sample for cell counting

A

unopette system

83
Q

analyzes and reports cbc, rbc indices, rbc distribution width, and platelet count

A

sysmex e-5000

84
Q

combination of different hematology instruments capable of performing cbc, rbc indices, rdw, platelet counts, etc..

A

sysmex total hematology system

85
Q

first model of coulter counter analyzer

A

coulter counter model s

86
Q

perfroms all the tests analyzed in the coulter counter model s plus rdw

A

coulter counter model s plus

87
Q

capable of determining histogram differential

A

coulter counter model s plus iv

88
Q

best rbc diluting fluid

A

dacie’s fluid or formol citrate

89
Q

composition of dacie’s fluid

A

40% solution of formaldehyde (10.0mL)
3% w/v trisodium citrate (990.0 mL)

90
Q

rbc diluting fluid that is not recomended because it allows growth of yeast and produces clumping of cells

A

hayems

91
Q

this rbc diluting prevents rouleaux formation and precipitates protein in cases of hemoglobinemia and hyperglobulinemia

A

gower’s

92
Q

rbc diluting fluid with a high sg and stains wbc

A

toisson’s

93
Q

rbc diluting fluid used in cases of emergency, particularly in excessive rouleaux formation

A

normal saline solution (NSS)

94
Q

also known as erythrocytes

A

red blood cells

95
Q

what does anucleate mean

A

dont have nucleus

96
Q

normal size of red blood cell

A

6 to 8 micrometer (ave. 7.5 um)

97
Q

how thick are red blood cells

A

1.5 to 2.5 micrometer (ave. 2 um)

98
Q

normal shape of red blood cells

A

round, biconcave disc, and discocyte

99
Q

meaning of anemia

A

decreased rbc count

100
Q

meaning of polycythemia

A

increased rbc count

101
Q

diameter of central pallor in rbc

A

1/3

102
Q

diluent used in rbc count

A

thoma pipette

103
Q

reagent used in hemoglobin measurement

A

drabkin reagent

104
Q

ratio of the volume of packed rbc’s to the volume of whole blood

A

hematocrit measurement

105
Q

practice of drawing blood from a vein or through a cut in skin

A

phlebotomy

106
Q

The person who is trained to draw blood from a person or animal for tests, transfusions, donation or research

A

phlebotomist

107
Q

A process by which blood is obtained from a patient’s artery

A

arterial puncture

108
Q

The primary reason for performing arterial puncture is to obtain

A

arterial blood gas

109
Q

A process by which blood is obtained from a patient’s vein

A

venipuncture

110
Q

Considered to be the most commonly used method of blood collection

A

venipuncture

111
Q

It includes a table for supplies, a special chair where the patient sits during the blood collection procedure, and a bed or reclining chair for patients with a history of fainting, persons donating blood, and other special situations.

A

blood-drawing station

112
Q

important in a hospital setting and other instances in which the patient cannot come to the laboratory.

A

equipment carriers

113
Q

commonly used to transport blood and other specimens from the collection site to the laboratory.

A

biohazard bags

114
Q

is applied or tied around a patient’s arm
prior to venipuncture to compress the veins and restrict blood flow.

A

tourniquet

115
Q

is indicated by a number that is related to the diameter of the lumen

A

needle gauge

116
Q

the most commonly used needle length for venipuncture

A

1 inch to 1.5 inch

117
Q

order of draw

A

blood culture, yellow, blue, red, gold, light green, dark green, lavender, and grey

118
Q

prioritization of order

A

STAT, Timed, ASAP, Routine

119
Q
A
120
Q
A

HEMATOLOGY (1 decks)

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