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Lab > 17-3 > Flashcards

17-3 Flashcards

1
Q

What are the 5 types of WBC?

A 
1 Neutrophils
2 Eosinophils
3 Basophils
4 Lymphocytes
5 Monocytes
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2
Q

What is included in a CBC?

A 
1 WBC count (WBC)
2 RBC count (RBC)
3 Hemoglobin (Hgb)
4 Hematocrit (Hct)
5 Platelets (Plt)
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3
Q

RBC indices:

A

Mean corpuscular volume (MCV)
Mean corpuscular hemoglobin (MCH)
Mean corpuscular Hgb concentration (MCHC)
RBC distribution width (RDW)

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4
Q

What does WBC w/ differential give you?

A

total WBC count

& % by type

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5
Q

WBC w/ differential is used to determine what conditions

A

infection or leukemia

monitor bone marrow infection

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6
Q

Normal WBC Range:

A

4.5 - 11.0

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7
Q

Low WBC:

A

> 2,000

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8
Q

High WBC:

A

30,000

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9
Q

granular leukocytes

A

phils

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10
Q

agranular leukocytes

A

cytes

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11
Q

What is the most abundant type of phagocyte?

A

Neutrophils

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12
Q

Neutrophils make up what % of WBC?

A

50 -70%

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13
Q

Bands make up what % of WBC?

A

0-5%

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14
Q

immature neutrophils are also called

A

bands

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15
Q

Eosinophils make up what % of WBC?

A

1-5%

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16
Q

What type of WBC is important in defense against infectious disease?

A

Neutrophils

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17
Q

What type of WBC acts as an inflammatory response to allergic reactions, asthma, and certain myocardial diseases?

A

Eosinophils

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18
Q

Which is the least abundant type of WBC?

A

basophils

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19
Q

Basophils make up what % of WBC?

A

0-1%

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20
Q

Lymphocytes make up what % of WBC?

A

20-40%

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21
Q

What is the normal range of lymphocytes?

A

1.2 - 3.4

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22
Q

Monocytes make up what % of WBC?

A

1-6%

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23
Q

Which type of WBC is formed in the marrow, transforms into histiocytes or macrophages, and defends against mycobacteria, fungi, protozoa, and viruses?

A

Monocytes

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24
Q

Normal RBC range Males:

A

4.5 - 5.9

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25
Q

Normal RBC range Females:

A

4.5 - 5.1

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26
Q

RBC indices are useful in evaluation of what conditions?

A

Anemia, polycythemia, and nutritional disorders

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27
Q

What gives an estimate of the average volume size of RBCs?

A

Mean corpuscular volume

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28
Q

Increase in MCV could mean what?

A

Vit B12 deficiency or folate deficiency

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29
Q

Decrease in MCV could mean what?

A

abnormality in Hgb synthesis

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30
Q

MCV Normal range:

A

76-96

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31
Q

Increase in MCH could indicate?

A

Vit B12 deficiency or folate deficiency

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32
Q

Decrease in MCH could mean what?

A

iron deficiency

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33
Q

MCH normal range:

A

27-32

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34
Q

what gives the amount of hemoglobin per RBC?

A

MCH

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35
Q

what gives you the average concentration of hemoglobin in a given volume of packed RBCs?

A

MCHC

36
Q

Hgb / Hct x 100 =

A

MCHC

37
Q

What is the normal range of MCHC?

A

30-35

38
Q

What is the main component of RBC?

A

hemoglobin

39
Q

what protein transports oxygen and carbon dioxide?

A

hemoglobin

40
Q

What provides a direct indication of the oxygen-transport capacity of the blood?

A

Hgb

41
Q

Normal range Hgb Males:

A

14-17.5

42
Q

Normal range Hgb Females:

A

12.3 - 15.3

43
Q

Critically low Hgb:

A

> 8

44
Q

What is the ratio of the volume of erythrocytes to whole blood?

A

Hct

45
Q

What is low in patients with anemia?

A

Hgb and Hct

46
Q

Normal Hct Male:

A

42-52%

47
Q

Normal Hct Female:

A

37-47%

48
Q

What test is used to determine bleeding disorders, bone marrow diseases, or leukemia?

A

Platelet count

49
Q

Normal platelet range:

A

150k - 400k

50
Q

Low Plt count:

A

> 20k

51
Q

High Plt count:

A

< 1 million

52
Q

Low WBC is also called?

A

Leukopenia

53
Q

High WBC is also called?

A

leukocytosis

54
Q

Low WBC may be due to:

A 
bone marrow deficiency
disease of the liver or spleen
radiation therapy
chemotherapy
immune system disease
55
Q

High WBC may be due to:

A 
Anemia
Infectious disease
Bacterial disease
inflammation
leukemia
56
Q

High neutrophils may indicate?

A

Bacterial infection

57
Q

High lymphocytes may indicate?

A

Viral infection

58
Q

Increase in neutrophils is also called

A

neutrophilia

59
Q

Appearance of band cells in infection is called

A

Left shift

60
Q

Atypical lymphocytes are frequently secondary to a viral disease like?

A

mononucleosis

61
Q

An increase in eosinophils is also called

A

eosinophilia

62
Q

What is typically increased in parasitic infections and allergic disorders?

A

eosinophils

63
Q

Hct below normal range is what dx

A

Anemia

64
Q

Hct above normal range is what dx

A

polycythemia

65
Q

Decreased hemoglobin points to what?

A

hypochromasia

66
Q

High platelet count is also called

A

thrombocytosis

67
Q

Low platelet count is also called

A

Thrombocytopenia

68
Q

What can be caused by stress, infection, splenectomy, trauma, anemia, or cirrhosis?

A

high platelets

69
Q

What can be caused by TTP, DIC, leukemia, metastatic disorders?

A

Low platelets

70
Q

What 9 things are included in CBC Results:

A 
1 Hct
2 Hgb
3 MCHC
4 WBC
5 Granulocytes
6 % Granulocytes
7 Lymph/mono
8 % Lymph/mono
9 Platelets
71
Q

Where is the power switch located on the QBC star

A

rear panel left side

72
Q

When are you supposed to power off the QBC star?

A

at the end of the day’s testing

73
Q

If you need to reprint results you must do so before _____

A

opening the door

74
Q

Granulocytes appear what color?

A

orange-yellow

75
Q

Lymphocytes/monocytes appear what color?

A

green

76
Q

Platelets appear what color?

A

yellow-orange

77
Q

The precision plastic float in the QBC star tube does what?

A

expands the buffy coat layer &

penetrates the red blood cell layer

78
Q

What is directly measured from the cell layers?

A

hematocrit, WBC, platelets

79
Q

You should invert the test tube how many times?

A

12 to 15 times

80
Q

Fill the tube up to where?

A

between the first and second line

81
Q

You should mix the QBC star tube at least how many times?

A

4

82
Q

The tube must be inserted into the QBC star within how many minutes?

A

15 min

83
Q

Where do you dispose of QBC star tubes?

A

biohazard sharps container

84
Q

Electronic QC values are printed how often?

A

every 8 hours or when turned on

85
Q

If you see only dashes on the display screen what does that mean?

A

values are significantly out of range

Lab (12 decks)

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