Hemotology Flashcards Preview

Nursing 2nd Sem > Hemotology > Flashcards

Flashcards in Hemotology Deck (70)
Loading flashcards...
1

Thrombocytopenia

Inability to clot

2

Sites of stem cell production in adults

-Pelvis
-Vertebrae

3

Difference between serum and plasma?

Plasma still has the clotting factors while serum is plasma without the clotting factors.

4

An immature RBC

Reticulocyte

5

What drives the body to create new RBC (erythropoiesis)?

Hypoxia ( decrease o2) reaches the kidneys which release erythropoietin, which stimulates the red bone marrow, which causes erythropoiesis (creation of RBC).

6

What is Hypoxia?

Not enough O2 in the body

7

WBC

4,000-11,000 normal

8

Values for significant elevated WBC

15,000-20,000

9

Function of blood?

-TRANSPORT
O2, CO2, Hormones, waste, food
-PROTECTION
Clotting, phagocytosis, antibody production
-DISTRIBUTION OF BODY HEAT
Temp. Regulation

10

RBC

4-6

11

HGB/ HB

12-18

12

Hct

38-54%

13

Neutrophil values

3,000-7,500 (50-70%)

14

Mature neutrophils

"segs"

15

Immature neutrophils

"bands"

16

Basophils

granules contain heparin, seratonin, histamine, released for allergic or inflammation response.

17

Eosinophils

defense against parasites

18

Monocytes

2nd responder to neutrophils, stay longer, increase with all types of infection

19

Lymphocytes

B & T cells, More for autoimmune and cancer,

20

Indicies

physical appearance of the cell

21

Platelets

150,000-400,000

22

Less than 20,000 platelets

risk for spontaneous bleeds

23

Less than 5,000 platelets

fatal bleed

24

Thrombocytopnia

Platelets deficiency

25

Thrombocytosis

Excessive platelets

26

100,000 platelets

watch out for petechiae (red dotted rash) and ecchymosis (bruising)

27

Clotting process

Vasoconstriction, Vasospasm, platelets are activated and become sticky, unstable clot

28

Fibrin threads

Make unstable clots more stable

29

What are the three pathways in the clotting factors?

Intrinsic, Extrinsic, Common pathways

30

Intrinsic pathway

Faster pathway, for internal (within the blood), has 4 steps (XII, XI, IX, VIII)