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Medicine

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Respiratory

Question
1 out of 11
 

All of the following conditions may predispose to pulmonary embolism except: (AIIMS May 2010)



A Protein S deficiency
B Malignancy

C Obesity
D Progesterone therapy

Ans. D

Progesterone therapy

Causes PEs usually arise from a venous thrombosis in the pelvis or legs.

Rare causes include: right ventricular thrombus (post-MI): septic emboli (right-sided endocarditis); fat, air, or amniotic fluid embolism; neoplastic cells; parasites.

Risk factors: Any cause of immobility or hyper-coagulability Q:

Defective inhibition of coagulation factors

Impaired clot lysis

1). Factors V Leiden resistance (Resistance to activated protein C)

2). Antithrombin III deficiency

3). Protein C deficiency

4). Protein S deficiency

5). Prothrombin gene mutation

6). f. Antiphospholipid antibody or lupus anticoagulant

1). Dysfibrogenemia

2). Plasminogen deficiency

3). tPA deficiency

4). Uncertain Mechanism

5). Hyperhomocysteinemia

Risk Factor

1). Recent surgery

2). Recent stroke or MI.

3). Disseminated malignancy.

4). Pregnancy Q;

5). Postpartum Q;

6). Estrogen therapy

7). Protein S deficiency

8). Atrial fibrillation

9). Antiphospholipid syn.

10). Prolonged bed rest

Respiratory Flashcard List

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