Day 1 Flashcards

(75 cards)

1
Q

What is the result of the activation of the hemostatic mechanism?

A

Formation of a thrombus or platelet plug

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2
Q

Platelet adhesion to exposed collagen within the endothelium of the vessel was, describes which type of hemostasis?

A

Primary hemostasis(platelet)

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3
Q

Enzymatic activation of coagulation proteins to produce fibrin from fibrinogen, describes which type of hemostasis?

A

Secondary hemostasis (coag)

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4
Q

What is vasoconstriction and why does it occur?

A

Damaged blood vessels contracts to decrease blood flow

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5
Q

What two things must be true about platelets in order for a platelet plug to form?

A

Must be adequate in numbers

Must be functioning normally

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6
Q

What are the 5 steps of the hemostatic mechanism?

A
  • Vasoconstriction
  • diversion of blood flow
  • Initiation of contact activation of platelets
  • Activation: intrinsic & extrinsic =fibrin clot
  • Slow lysis of the clot occurs over time and the injury heals
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7
Q

What factor is the precursor of fibrin?

A

Factor I

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8
Q

What is the name of Factor VIII?

A

Antihemophilic Factor

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9
Q

What factor can be found in all body tissues and converts prothrombin to thrombin?

A

Factor III (Tissue Thromboplastin)

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10
Q

What factor is known as Proaccelerin or Labile Factor?

A

Factor V

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11
Q

What factor is the most abundant of the vitamin K-dependent clotting proteins?

A

Factor II (Prothrombin)

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12
Q

What factor is not destroyed or consumed in the clotting process and is essential only for the extrinsic pathway?

A

Factor VII (Proconvertin or Stable Factor)

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13
Q

Which factor helps to activate thromboplastin and convert prothrombin to thrombin? It also serves as a bridge between platelets and clotting factors?

A

Factor IV

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14
Q

What factor’s absence causes hemophilia B?

A

Factor IX(Plasma Thrombin Component)

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15
Q

What factor is also known as Hageman Factor?

A

Factor XII

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16
Q

What is the name for factor X?

A

Stuart-Prower Factor

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17
Q

What factor is essential for the intrinsic pathway, does not depend on vitamin K, and is synthesized in the liver?

A

Factor XI

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18
Q

What factor stabilizes the fibrin clot and is important in tissue growth and repair?

A

Factor XIII (Fibrin Stabilizing Factor)

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19
Q

What factor activates plasminogen?

A

Fletcher Factor (Prekallikrein)

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20
Q

What factor is also known as High Molecular Weight Kininogen?

A

Fitzgerald Factor

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21
Q

What are the three components of the hemostatic mechanism?

A
  • Extravascular effects
  • Vascular effects
  • Intravascular effects
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22
Q

What is the function(s) of platelets?

A

Release substance for vasoconstriction, platelet aggregation, coagulation and vascular repair

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23
Q

Coagulation factors are _______ in nature with the exception of calcium .

A

Protein

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24
Q

What are the three groups of coagulation factors and what are included in each?

A

Fibrinogen Group
Prothrombin Group
Contact Group

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25
What coagulation factor group doesn’t require vitamin K for synthesis?
Fibrinogen Group
26
What coagulation factor group contains factors that are stable?
Prothrombin Group
27
What is one of the body’s most important natural defense mechanisms?
Hemostasis
28
What does hemostatic mechanism assure?
That clots in the body are formed only when they should be
29
What is the name for factor I?
Fibrinogen
30
What is the name for factor II ?
Prothrombin
31
What is the name for factor III?
Tissue Thromboplastin
32
What is the name for factor IV?
Ionized Calcium
33
What is the name for factor V?
Proaccelerin or Labile Factor
34
What is the name for factor VII
Proconvertin or Stable factor
35
What is the name for factor VIII?
Antihemophilic Factor
36
What is the name for factor IX?
Plasma Thromboplastin Component
37
What is the name for factor X?
Stuart-Prower Factor
38
What is the name for factor XI?
Plasma Thromboplastin Antecedent
39
What is the name for factor XII?
Hageman Factor
40
What is the name for factor XIII?
Fibrin Stabilizing Factor
41
Which factor is essential only for extrinsic coagulation pathway?
Factor VII
42
Which factor serves as a bridge between platelets and clotting factors?
Factor IV
43
True or False: | Factor VI exists
False, there is no Factor VI
44
Which factor has the longest half-life of the vitamin K dependent clotting proteins?
Factor II
45
Which factor converts prothrombin to thrombin?
Factor III
46
Which factor is the most abundant of the vitamin K dependent clotting proteins?
Factor II
47
Which factor is synthesized by the liver and does not require vitamin K for production?
Factor I
48
Which factor is a precursor of fibrin?
Factor I
49
Which factor helps to activate Thromboplastin and convert prothrombin to thrombin?
Factor IV
50
Which factors activity deteriorates within a few hours?
Factor V
51
Which factor is not destroyed nor consumed in the clotting process?
Factor VII
52
Which factors deficiency causes hemophilia?
Factor VIII
53
Which factor cause hemophilia A and Von Willebrand’s disease?
Factor VIII
54
What is a sex linked, recessive coagulation disorder?
Hemophilia A
55
Autosomal inheritance describes what disease?
Von Willebrand’s disease
56
What disorder cause bleeding into the joints and intramuscular hemorrhage?
Hemophilia A
57
Which disorder has a normal bleeding time?
Hemophilia A
58
Platelets cannot adhere properly to subendothelial surface, causing severe hemorrhaging, describes what disease?
Von Willebrand’s disease
59
What disease has a consistent abnormal bleeding time?
Von Willebrand’s disease
60
The absence of which factor causes Hemophilia B?
Factor IX
61
Which factor results in prolonged PT AND APTT but normal bleeding time?
Factor IX
62
Which factor is synthesized in the liver and vitamin K dependent?
Factor X
63
What are the Three Categories of Factors?
Fibrinogen Group Prothrombin Group Contact Group
64
Which factors are in the contact group?
Factors XI, XII, Fletcher/Prekallikrein & HMWK
65
What factors are included in the Prothrombin Group?
II, VII, IX, X
66
What factors are included in Fibrinogen Group?
I, V, VIII, XIII
67
Which group requires Vitamin K for synthesis?
Prothrombin Group
68
Which Group doesn’t depend on Vitamin K for synthesis?
Contact Group
69
Which group does not require Vitamin K for synthesis?
Fibrinogen Group
70
What circumstances are Fibrinogen group factors increased?
Pregnancy, inflammation, and with oral conception use(birth control)
71
When would Prothrombin group factors be decreased?
In acquired Vitamin K deficiencies
72
Prothrombin Group factors are __________.
Stable
73
Factors V and VIII are _______.
Labile
74
_______________ and _______ aid in the activation of the clot lysing enzyme plasminogen.
Prekallikrein and HMWK
75
List Vitamin K dependent factors
II VII IX X