5) A cholecystectomy specimen is examined fresh in the laboratory. It shows a large impacted gallstone in the neck. Fundus of the gallbladder shows engorgement of blood vessels on external surface. This is most likely due to:
Anonymous Quiz
0%
a) A malignant process
8%
b) Hyperemia
92%
c) Congestion due to obstruction to outflow of blood
0%
d) Chronic inflammation
6) The role of thrombin includes:
Anonymous Quiz
5%
a) Stimulates platelet aggregation
50%
b) Catalyze conversion of fibrinogen to fibrin
0%
c) Mitogenic for fibroblasts
0%
d) Stimulates neutrophil & macrophage adhesion
45%
e) All of the above
7) Which of the following is the least important risk factor for development of thrombus?
Anonymous Quiz
68%
a) Smoking
0%
b) Antithrombin III deficiency
16%
c) Disseminated malignancy
16%
d) Prolonged rest in bed.
8) Which of the following regarding arterial thrombi is TRUE?
Anonymous Quiz
10%
a) It typically creates a long cast of vessel lumen with a propagational long tail.
40%
b) The tail of thrombi often breaks off & embolizes to distal sites
50%
c) Most common sites are cerebral, coronary & femoral arteries
0%
d) Mural thrombi is most commonly found in the femoral artery
9) Which of the following statement regarding disseminated intravascular coagulation (DIC) is FALSE?
Anonymous Quiz
11%
a) Multiple thrombi develop in the microcirculation
16%
b) Rapid consumption of platelets, prothrombin & fibrinogen occurs
53%
c) Bleeding diathesis is solely due to thrombocytopenia
21%
d) Fibronogen degradation products (FDPs) increase due to rapid fibrinolysis.
10) The most common cause of infarction of an organ or tissue is:
Anonymous Quiz
5%
a) Venous occlusion due to twisting of the organ
86%
b) Thromboembolism
10%
c) Compression of organ in the hernial sac.
0%
d) Ballooning of atheroma secondary to haemorrhage into the plaque.
11) Which of following statements are FALSE?
Anonymous Quiz
63%
a) Embolic obstruction of small or medium sized arteries results in pulmonary infarct
16%
b) Multiple PEs can lead to development of pulmonary hypertension & chronic right heart failure.
5%
c) 60-80% of PEs are clinically silent
16%
d) Natural course of PE includes resolution & organization of the emboli.
12) Common risk factors for arterial thrombo-emboli include the following EXCEPT:
Anonymous Quiz
11%
a) Acute myocardial infarction
26%
b) Paradoxical embolism from venous thrombi
53%
c) Rheumatic heart disease
11%
d) Cardiomyopathy
13) Which of the following statements are TRUE?
Anonymous Quiz
5%
a)Amniotic fluid embolism occurs during labour due to tear in the placental membrane.
10%
b) Mortality rate of amniotic fluid embolism is high.
10%
c) Patients with amniotic fluid embolism develop acute pulmonary oedema, RDS & DIC.
75%
d) All of the above
15) Heart failure cells are:
Anonymous Quiz
0%
a) Fibrocytes in myocardium
0%
b) Aschoji's giant cells
100%
c) Hcamosiderin laden macrophages in alveoli
0%
d) Hypertrophic myocardial fibers
16) Heart failure cells are seen in:
Anonymous Quiz
4%
a) Heart
83%
b) Lungs
9%
c) Liver
4%
d) Kidney
17) In a thrombus, the dark lines of Zahn are due to:
Anonymous Quiz
26%
a) Coagulated fibrin
5%
b) Aggregated proteins
26%
c) Aggregated platelets
42%
d) Aggregated R.B.C
18) Shock is a circulatory disturbance characterized
Anonymous Quiz
0%
a) Increased blood pressure
95%
b) Decreased volume of circulating blood
5%
c) Elevated body temperature
0%
d) Decreased volume of interstitial fluid
19) The major factors predisposing to thrombogenesis include all of the following except:
Anonymous Quiz
6%
a) Altered blood flow
0%
b) Endothelial injury
94%
c) Pattern of blood flow
0%
d) Hypercoagulability of blood
20) Which of the following being is the most frequent site of thrombus?
Anonymous Quiz
0%
a) hepatic vein
14%
b) Pulmonary vein
5%
c) Portal vein
81%
d) Veins of lower extremities
21) An infarct is most frequently characterized by what type of necrosis?
Anonymous Quiz
10%
a) Caseous
65%
b) Coagulative
10%
c) Fatty
15%
d) Gangrenous
22) The most reliable post mortem feature of left sided cardiac failure is:
Anonymous Quiz
25%
a) Systemic venous congestion
70%
b) Chronic venous congestion of lungs
0%
c) Enlargement of spleen and liver
5%
d) Oedematous ankles
23) Partial or complete obstruction of some part of the cardiovascular system by a foreign body transported by the blood stream is termed as:
Anonymous Quiz
0%
a) Coagulation
5%
b) Ischaemia
19%
c) Thrombosis
76%
d) Embolism
24) Caisson's discase is caused by:
Anonymous Quiz
14%
a) Amniotic fluid embolism
5%
b) Tumour embolism
5%
c) Hyper coagulability
77%
d) Air or gas embolism