Syllabus · Current · V5 (2025) · Haematological and Immunological System

N1 · Physiology of Haematological System

N1.v · Antithrombotic Mechanisms

Official V5 objective
Describe the mechanisms of preventing thrombosis including endothelial factors and natural anticoagulants.
1 SAQ topic 2 SAQ appearances 1 VIVA station

Written examination

SAQ history

2 appearances
Describe the sequence of haemostatic events following injury to a blood vessel wall until clot stabilisation.
46%
Outline the sequence of haemostatic events after injury to a blood vessel wall (50% of marks). Discuss the role of naturally occurring anticoagulants in preventing clot formation in-vivo (50% of marks).
40%

Oral examination

VIVA history

1 station

Sources: objective text from the relevant CICM syllabus; historical SAQ and VIVA wording from CICM examiner reports.