Chapter.15 – Test Bank – Overview of Hemostasis and Platelet - Test Bank | Hematology in Practice 3e by Betty Ciesla by Betty Ciesla. DOCX document preview.
Chapter 15. Overview of Hemostasis and Platelet Physiology
Multiple Choice
1. Factor II is also known as which of the following?
A. Thrombin
B. Fibrinogen
C. Prothrombin
D. Fibrin
L.O. 15.7
2. Platelet aggregation is dependent on the presence of:
A. Calcium ions
B. Sodium citrate
C. Magnesium
D. Potassium
L.O. 15.2 & 15.3
3. The vasoconstrictor substance released from the platelets at the site of injury is:
A. Thrombin
B. Thromboxane A2
C. Adenosine diphosphate
D. Prostacyclin
L.O. 15.2 & 15.3
4. Which organ is responsible for sheltering 20% of the total platelet volume in the circulation?
A. Kidneys
B. Adrenal gland
C. Spleen
D. Liver
L.O. 15.1
5. The main substrate of the coagulation system is:
A. Calcium
B. ADP
C. Collagen
D. Fibrinogen
L.O. 15.3 & 15.6
6. A decreased platelet count is most often anticipated when a patient demonstrates:
A. Thrombosis
B. Petechiae
C. Hemarthrosis
D. Glossitis
L.O. 15.1 & 15.4
7. Which of the following is not a component of the fibrinolytic system?
A. Thrombin
B. Plasmin
C. Tissue-type plasminogen activator (tPA)
D. Urokinase
L.O. 15.10
8. The prothrombin group of factors consists of factors:
A. I, V, VIII, and XIII
B. XI, XII, prekallikrein, and HMWK
C. II, VII, IX, and X
D. III, VIII, IX, and X
L.O. 15.7
9. The anticoagulant known as heparin:
A. Inhibits PF3 activity
B. Inhibits thrombin activity
C. Degrades antithrombin activity
D. Chelates calcium
L.O. 15.10
10. Which factor is involved in contact activation?
A. Factor X
B. Fibrinogen
C. Fitzgerald factor
D. Factor II
L.O. 15.6 & 15.7
11. Which factor is measured by both the PT and the aPTT?
A. VIII
B. IX
C. V
D. XIII
L.O. 15.6
12. Which of the following proteins is not made in the liver?
A. Anti-hemophiliac factor
B. Prothrombin
C. Fibrinogen
D. von Willebrand factor
L.O. 15.1
13. Tissue factor pathway inhibitor (TFPI):
A. Prevents activation of factor X by VIIa
B. Activates the common pathway
C. Inhibits fibrinolysis
D. Inhibits the kallikrein proteins
L.O. 15.10
14. The two inhibitors that keep the activation of coagulation under control are:
A. TFPI and thrombomodulin
B. Protein C and protein S
C. Protease inhibitors and the protein C pathway
D. Alpha 2 macroglobulin and alpha 1 antitrypsin
L.O. 15.10
15. In the prothrombin test, the patient’s citrated plasma is combined with:
A. Phospholipids
B. Thromboplastin only
C. Ca2+ and actin
D. Ca2+ and thromboplastin
L.O. 15.8
16. The first response of a cut vessel is:
A. Vasoconstriction
B. Platelet aggregation
C. Activation of the intrinsic pathway
D. Vasodilation
L.O. 15.2
17. The average life span of a platelet in a normal adult is:
A. 1 to 5 days
B. 5 to 7 days
C. 7 to 10 days
D. 18 to 21 days
L.O. 15.2
18. Platelets are synthesized in the:
A. Liver
B. Spleen
C. Lymph glands
D. Bone marrow
L.O. 15.2
NARRBEGIN:
NARREND
19. This figure represents which of the following?
A. Leukocytes
B. Activated platelet
C. Nucleated red cell
D. Neutrophil
NAR: Figure 15-3
L.O. 15.2
20. There are four phases in platelet function. The correct order of occurrence from the beginning to end is:
A. Adhesion, release, aggregation, stabilization
B. Aggregation, adhesion, stabilization, release
C. Adhesion, aggregation, release, stabilization
D. Release, aggregation, adhesion, stabilization
L.O. 15.2
21. The fibrinogen group of coagulation factors include factors:
A. I, V, VII, XIII
B. II, VII, IX, X
C. III, VIII, IX, X
D. XI and XII
L.O. 15.7
22. Which of the following assays test for the presence of a circulating inhibitor?
A. PT
B. Factor assay
C. Mixing study
D. APTT
L.O. 15.8
23. Patients taking oral anticoagulants are monitored using the PT assay. What other result is necessary to adequately monitor these patients?
A. INR
B. APTT
C. D-dimer
D. Platelet count
L.O. 15.9
Matching
Match the factor with its correct name.
A. Thrombin
B. Fibrin
C. Anti-hemophiliac factor
D. Fibrinogen
E. Prothrombin
25. Factor I
26. Factor II
27. Factor Ia
28. Factor IIa
30. Factor VIII
L.O. 15.7
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