Blood Cell Terminology and CBC Flashcards Preview

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Flashcards in Blood Cell Terminology and CBC Deck (54)
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1

What is another name for platelets?

Thrombocytes

2

What is the function of thrombocytes?

Major component of clotting system, plug holes in blood vessels

3

What are white blood cells also named?

leukocytes

4

What is the difference between plasma and serum?

Serum does not contain clotting factors

5

What is hematocrit?

fraction of whole blood composed of RBCs

6

Why is RBC described as "biconcave disc"

Disc-shaped with central concavity on each surface

7

How does RBC generate ATP

Glycolysis

8

How large should the central pallor on a normal RBC be?

1/3 diameter

9

Which of the following does NOT have a segmented nucleus
a) neutrophils
b) eosinophils
c) basophils
d) lymphocytes

d)

10

What type of leukocyte contains an irregular shaped nucleus and vacuoles?

Monocyte

11

Which type of leukocyte is characterized by a dark nucleus that takes up most of cell?

Lymphocyte

12

What is the color of the granules in:
Eosinophils
Neutrophils
Basophils

Red
Purple
Blue

13

A _______ cell is a maturing neurophil and is characterized by a bent nucleus

Band

14

What do monocytes differentiate into?

Macrophages and Dendritic Cells

15

Which of the following secrete histamine?
a) eosinophils
b) basophils
c) monocytes
d) neutrophils

b)

16

Which of the following is the body's first response to trauma
a) eosinophils
b) basophils
c) monocytes
d) neutrophils

d)

17

True or false: Platelets have no organelles

false, have mitochondria

18

True or false: RBC count is naturally higher in men than women

true

19

Erythrocytosis, leukocytosis, and thrombocytosis may all lead to what?

Neoplasm

20

Thrombocytosis is a sign of ________

inflammation

21

Erythrocytosis causes a reaction to increased O2 demand called ____________

polycythemia

22

What is the formula for red cell distribution width?

RDW = SD/MCV * 100

23

Anemia can be caused by which of the following:
a) low RBCs
b) low HCT
b) low Hgb
e) all of the above

e)

24

How is hemoglobin measured in the lab?

RBCs are lysed then CN-containing reagent is added to form cyanmethemoglobin then absorption is assessed at 540 nm

25

Hematocrit is normally measured using

CALCULATIONS! total RBC volume / total blood volume

26

What is the difference between mean corpuscular Hgb and mean corpuscular Hgb concn?

First one is avg mass of Hgb per RBC, second one is concn of Hgb per RBC

MCH = HGB/RBC
MCHC = HGB/HCT or MCH/MCV

27

Under which condition would you see high side scatter?
1) high cell complexity
2) high granules
3) larger cells

1) complexity

28

Under which condition would you see high forward scatter?
1) high cell complexity
2) high granules
3) larger cells

3) larger cells

29

Under which condition would you see the "disco ball effect"?
1) high cell complexity
2) high granules
3) larger cells

2) granules

30

Define basopenia. Is it of clinical signifiance?

Too low basophils - often clinically insignificant