Ch. 3 Flashcards
(13 cards)
0
Q
Normal Hgb:
A
12–15.6g/dL
1
Q
Normal WBC:
A
4.8-10.8 x 10^3/mcL
2
Q
Normal Hct:
A
35–46%
3
Q
Normal RBC:
A
3.8–5×10^6/ mcL
4
Q
Normal platelet count:
A
150-400,000/mcL
5
Q
Define hematocrit:
A
The amt. of blood volume occupied by the RBCs.
6
Q
Define Thrombocytosis:
A
Too many blood platelets
7
Q
Thrombocytopenia:
A
Too few blood platelets
8
Q
Hemostasis
A
The stopping of bleeding
9
Q
Stages of hemostasis:
A
- Vessel spasm
- Formation of platelet plug
- Blood coagulation
- Clot retraction
- Clot dissolution
10
Q
Define Thrombus:
A
Blood clot
11
Q
Define tissue plasminogen activator (t-PA):
A
Chemical secreted by endothelial cells of a vessel wall that prevents clots from forming on them
12
Q
Define Thromboplastin (Tissue Factor or Factor III):
A
A protein that initiates the formation of thrombin.
