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FU17 Hematology > CBC RBC` > Flashcards

CBC RBC` Flashcards

1
Q

Reticulocyte

A

Immature RBC

Contains RNA, present for 1-2 days

Should not be seen in peripheral smear

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2
Q

Normal number of RBCS

A

4-6 million

More in males

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3
Q

Normal Hb values

A

Males: 14-18

Females: 12-16

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4
Q

Normal values

MCV

A

80-100

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5
Q

Normal values

MCHC

A

31-37

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6
Q

Normal values

RDW

A

11-16%

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7
Q

Critical values of Hb

A

<5

> 20

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8
Q

Hct <35%

A

Moderate to severe anemia

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9
Q

Hct <20%

A

Cardiac failure

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10
Q

Hct >60%

A

Increased hemostasis

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11
Q

Increased reticulocyte count indicates

A

RBC production is occuring

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12
Q

Decreased reticulocyte count indicates

A

Bone marrow is not making enough RBC

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13
Q

RBC indicates

A

Define the size and Hb content of red cell

Used to evaluate and classify anemia

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14
Q

MCV

A

Volume occupied by single red cell

Normal: 80-100 fl

SIZE of cell

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15
Q

Normal MCV

A

Normocytic

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16
Q

MCV < 80

A

Microcytic

17
Q

MCV > 80

A

Macrocyclic

18
Q

MCH

A

Measure of average weight of hemoglobin per RBC

Can be falsely increased by hyperlidemia and heparin

19
Q

MCHC

A

Average [Hb] in RBC

Normal values: 31-37

20
Q

Low MCHC

A

Hypochromia

21
Q

High MCHC

A

Hyperchromia

Can be high in newborns

22
Q

RDW

A

Indication of the degree of variation in size of RBC

Normal: 11-16%

23
Q

Abnormal variation in size

A

Anisocytosis

24
Q

Abnormal variation in shape

A

Poikilocytes

25
Q

Hypochromia

A

Pale hollow center

Decreased HgB

26
Q

Polychromatic

A

Immature RBCs

Shades of grayish blue

27
Q

Microcytic

A

Small cells

28
Q

Macrocytic

A

Large cells

29
Q

Nucleated red cells

A

Nucleus still present in cell

30
Q

Basophilic stippling

A

Punctuate stippling of cell

Indicates lead poisoning

31
Q

Target cells

A

Cells w/ dark center and periphery and clear ring b/q

32
Q

Spherocytes

A

Spherical cells w/o clear center

33
Q

Schistocytes

A

Irregular contracted cells

Fragments

34
Q

Heinz bodies

A

DNA ruminants in periphery of RBC

Also Howell Jolly bodies

35
Q

Nucleated RBCs

A

Very immature form of RBCs

Seen when severe demand for RBCs to be released from marrow

Should not see unless infants

36
Q

Test used to measure ability of body to absorb vitamin b12

A

Schilling test

FU17 Hematology (10 decks)

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