Syllabus · Historical · V4 (2023) · Cardiovascular System

G3 · Determinants and Control of Cardiac Output

G3.iii · Determinants and Control of Cardiac Output

Official V4 objective
Define the components and determinants of cardiac output including the effects of positive pressure ventilation.
8 SAQ topics 17 SAQ appearances 11 VIVA stations

Written examination

SAQ history

17 appearances
Cardiac Output — Afterload
4 exam appearances
Define afterload (10% marks) and describe the physiological factors that may affect afterload on the left ventricle (90% marks).
53%
Describe the factors that determine right and left ventricular afterload.
31%
Define afterload and describe the physiological factors that may affect afterload
60%
Define afterload (10% of mark). Describe the factors that can affect left ventricular afterload (90% of mark).
20%
The systemic vascular resistance is suddenly increased, describe the consequences for the otherwise healthy left ventricle.
11%
Describe the consequences for the left ventricle of a sudden and sustained increase in afterload.
7%
Describe the cardiovascular effects of a sudden increase in afterload
21%
Define myocardial contractility and briefly describe dP/dT, the end systolic pressure volume (ESPV) relationship and the ejection fraction (EF).
13.6%
Cardiac Output — Determinants
2 exam appearances
Discuss the physiological determinants of cardiac output.
65%
Discuss the regulation of cardiac output. Illustrate your answer by using a graph to describe the important physiological relationships.
44%
Cardiac Output — LV Function
1 exam appearance
Describe the factors affecting left ventricular function.
12%
Cardiac Output — Preload
2 exam appearances
Define cardiac preload and describe its determinants
29%
Define preload and describe the determinants of preload.
10%
Cardiac Output — RV Output
1 exam appearance
Describe the factors that affect the output of the right ventricle
50%
Outline the determinants of venous return to the right heart.
34.9%
Discuss the determinants of venous return to the heart.
67%
Outline the determinants of venous return to the heart.
31%

Oral examination

VIVA history

11 stations

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